- J. Pant, W.-S. Lu and A. Antoniou, "A new algorithm for compressive sensing based on
total-variation norm," Proc. ISCAS, pp. 1352-1355, Beijing, China, May 2013.
pdf
- W.-S. Lu and T. Hinamoto, "New algorithm for minimax design of sparse IIR filters,"
Proc. ISCAS, pp. 2920-2923, Beijing, China, May 2013.
pdf

- J. Yan and W.-S. Lu, "Smoothed lp-l2 solvers for signal denoising," Proc. Int. Conf.
Acoustics, Speech, and Signal Processing (ICASSP), pp. 3801-3804, Kyoto, Japan, March 2012.
pdf
- W.-S. Lu and T. Hinamoto, "Variable fractional delay FIR filters with sparse
coefficients," Proc. ISCAS, pp. 782-785, Seoul, Korea, May 2012.
pdf
- J. Pant, W.-S. Lu and A. Antoniou, "Reconstruction of block-sparse signals by using
an l2/p-regularized least-squares algorithm," Proc. ISCAS, pp. 277-280, Seoul, Korea, May
2012.
pdf
- J. Yan and W.-S. Lu, "Fast dual-based linearized Bregman algorithm for compressive
sensing of digital images," Proc. IASTED Int. Conf. Visualization, Imaging and Image
Processing (VIIP 2012), pp. 43-49, Banff, Canada, July 2012.
pdf
- T. Hinamoto, A. Doi, and W.-S. Lu, "Joint optimization of high-order error feedback
and realization for roundoff noise minimization in the Fornasini-Marchesini second model,"
Proc. 55th. MWSCAS, pp. 1120-1123, Boise, Idaho, Aug. 5-8, 2012.
pdf
- H.-Y. Liu, W.-S. Lu, Y. Fu, Y. Cheng, T. Yan, T. Li, M.Q.-H. Meng, "Fast monotonic bliind
deconvolution algorithm for constrained TV based image restoration," Proc. 10th World Congress
Intelligent Control and Automation (WCICA 2012), pp. 1-6, Beijing, July 6-8, 2012.
pdf
- T. Hinamoto, A. Doi, and W.-S. Lu, "Roundoff noise reduction in state-space digital
filters using high-order error feedback and realization," Proc. Asian Pacific Conf. Circuits
and Systems (APCCAS 2012), pp. 284-287, Kaohsiung, Taiwan, Dec. 2-5, 2012.
pdf

- J. Pant, W.-S. Lu and A. Antoniou, "Unconstrained regularized lp-norm based algorithm
for the reconstruction of sparse signals," Proc. ISCAS, pp. 1740-1743, Rio de Janeiro,
Brazil, May 2011.
pdf
- W.-S. Lu and T. Hinamoto, "Minimax design of stable IIR filters with sparse
coefficients," Proc. ISCAS, pp. 398-401, Rio de Janeiro, Brazil, May 2011.
pdf
- H. Liu, W.-S. Lu, and M. Q.-H. Meng, "Fast algorithms for restoration of color
wireless capsule endoscopy images," Proc. 54th. MWSCAS, Seoul, Korea, Aug. 7-10, 2011.
pdf
- T. Hinamoto, A. Doi, and W.-S. Lu, "Jointly optimized high-order error feedback and
realization for roundoff noise minimization in state-space digital filters," Proc. 54th.
MWSCAS, Seoul, Korea, Aug. 7-10, 2011.
pdf
- J. Pant, W.-S. Lu and A. Antoniou, "Recovery of sparse signals from noisy
measurements using an lp-regularized least-squares algorithm," Proc. PacRim Conf., pp. 48-53,
Victoria, BC, Canada, August 2011.
pdf
- H. Liu, W.-S. Lu, and M. Q.-H. Meng, "De-blurring wireless capsule endoscopy images
by total variation minimization," Proc. PacRim Conf., pp. 102-106, Victoria, BC, Canada,
August 2011.
pdf
- J. Yan and W.-S. Lu, "New algorithms for sparse representation of discrete signals
based on lp-l2 optimization," Proc. PacRim Conf., pp. 73-78, Victoria, BC, Canada, August
2011.
pdf
- J. Yan and W.-S. Lu, "Power-iterative strategy for lp-l2 optimization for compressive
sensing: towards global solution," Proc. Asilomar Conf., pp. 1153-1157, Pacific Grove, CA.,
USA, Nov. 6-9, 2011.
pdf

- Z. Yang, L. Cai, and W.-S. Lu, "Practical concurrent transmission scheduling
algorithms for rate-adaptive wireless networks," INFOCOM 2010, pp. 1-9, San Diego, CA., March
15-19, 2010. (DOI: 10.1109/INFCOM.2010.5462013)
pdf
- J. Yan and W.-S. Lu, "Global design of perfect-reconstruction orthogonal
cosine-modulated filter banks," Proc. CCECE 2010, pp. 1-4, Calgary, Alberta, May 2-5, 2010.
pdf
- W. Xu, X. Dong, and W.-S. Lu, "On joint optimization of source and relay precoding
design for MIMO downlink channels," IEEE ICC 2010, pp. 1-5, Cape Town, South Africa, May
23-27, 2010. (DOI: 10.1109/ICC.2010.5501938)
pdf
- W.-S. Lu and T. Hinamoto, "Digital filters with sparse coefficients," ISCAS 2010,
pp. 169-172, Paris, France, May 30 June 2, 2010.
pdf
- P. Ramachadran, W.-S. Lu, and A. Antoniou, "Optimized numerical mapping scheme for
the location of exons," ISCAS 2010, pp. 2231-2234, Paris, France, May 30 June 2, 2010.
pdf
- J. Pant, W.-S. Lu and A. Antoniou, "Reconstruction of sparse signals by re-weighting
approximate l0 norm minimization in the null space of the projection matrix," 54th IEEE
Midwest Symposium Circuits and Systems, pp. 430-433, Seattle, WA., August 1-4, 2010. (Plenary
Talk)
pdf
- T. Hinamoto, O. Tanaka and W.-S. Lu, "Minimal realization and l2-sensitivity
analysis for 3-D separable-denominator digital filters," EUSIPCO 2010, pp. 75-79, Aalborg,
Denmark, August 23-27, 2010.
pdf
- C.-K. Ted Liu, W. Xu, X. Dong, and W.-S. Lu, "Adaptive power allocation for
bidirectional amplify-and-forward multiple-relay multiple-user networks," Globecom 2010, pp.
1-6, Miami, FL., Dec. 6-10, 2010. (DOI: 10.1109/GLOCOM.2010.5683807)
pdf

- P. Ramachadran, W.-S. Lu, and A. Antoniou, "Tuning technique for the location of hot
spots in proteins using a bandpass notch digital filter," Proc. GENSIPS 2009, pp. 1-4,
Minneapolis, MN, May 17-19, 2009. (DOI: 10.1109/GENSIPS2009:5174342)
pdf
- W.-S. Lu and T. Hinamoto, "Direct design of orthogonal filter banks and wavelets,"
Proc. IEEE ISCAS 2009, pp. 81-84, Taipei, Taiwan, May 24-27, 2009.
pdf
- T. Hinamoto, O. Tanaka, and W.-S. Lu, "Realization od 3-D separable-denominator
digital filters with very low l2-sensitivity," Proc. IEEE ISCAS 2009, pp. 321-324, Taipei,
Taiwan, May 24-27, 2009
pdf
- P. Ramachadran, W.-S. Lu, and A. Antoniou, "Location of exons in DNA sequences
using digital filters," Proc. IEEE ISCAS 2009, pp. 2337-2340, Taipei, Taiwan, May 24-27,
2009.
pdf
- T.C.-K. Liu, X. Dong and W.-S. Lu, "Compressed sensing maximum likelihood channel estimation
for ultra-wideband impulse radio," Proc. IEEE ICC, pp. 1-5, Dresden, Germany, June 14-18, 2009.
(DOI: 10.1109/ICC.2009.5198843)
pdf
- T. Hinamoto, K. Kai and W.-S. Lu, "Comparison of techniques for L2-sensitivity
minimization under L2-scaling constraints in state-space digital filters," Proc. 52th IEEE
Midwest Symp. Circuits Syst., pp. 636-639, Cancun, Mexico, Aug. 2-5. 2009.
pdf
- A.-M. Sevcenco and W.-S. Lu, "Histogram-enhanced principal component analysis for
face recognition," Proc IEEE PacRim Conf., pp. 175-180, Victoria, Canada, Aug. 23-26, 2009.
pdf
- J. Yan and W.-S. Lu, "Towards global design of orthogonal filter banks and wavelets,"
Proc IEEE PacRim Conf., pp. 187-192, Victoria, Canada, Aug. 23-26, 2009.
pdf
- T. Hinamoto, O. Tanaka and W.-S. Lu, Reduction of l2-sensitivity for 3-D
separable-denominator digital filters, Proc. EUSIPCO, pp. 243-247, Glasgow, Scotland, Aug.
24-28, 2009.
pdf

- Y.H. Zhang, W.-S. Lu and T.A. Gulliver, "Low complexity joint semiblind detection
for OFDM systems over time-varying channels," Proc. IEEE Wireless Communications and
Networking Conference (WCNC) 2008, pp. 858-863, Las Vages, March 31April 3, 2008.
pdf
- W.-S. Lu and T. Hinamoto, "Design of frequency-response-masking FIR filters using
SOCP with coefficient sensitivity constraint," Proc. IEEE ISCAS 2008, pp. 2442 2445,
Seattle, WA., May 18-21, 2008.
pdf
- P. Ramachandran, W.-S. Lu, and A. Antoniou, "Improved hot-spot location technique
for proteins using a bandpass notch digital filter," Proc. IEEE ISCAS 2008, pp. 2673 2676,
Seattle, WA., May 18-21, 2008.
pdf
- T. Hinamoto, T. Oumi, O. I. Omoifo, and W.-S. Lu, "Two-dimensional state-space
digital filters with minimum frequency-weighted l2-sensitivity under l2-scaling constraints,"
Proc. 51th IEEE MWSCAS, pp. 850-853, Knoxville, TN., August 10-13, 2008.
pdf
- Y.H. Zhang, W.-S. Lu and T.A. Gulliver, "Blind polynomial channel estimation for
OFDM systems," Proc. IEEE 68th Vehicular Technology Conference (VTC) 2008, pp. 1-5, Calgary,
Sept. 21-24, 2008.
pdf
- T. Hinamoto, K. Kawai, M. Nakamoto, and W.-S. Lu, "Jointly optimized error-feedback
and realization for roundoff noise minimization in state-estimate feedback digital
controllers," Proc. 16th European Signal Processing Conference (EUSIPCO), Lausanne,
Switzerland, Aug. 25-29, 2008.
pdf
- T.C.-K. Liu, X. Dong, and W.-S. Lu, "A regularized least squares approach for
ultra-wideband time-of-arrival estimation with wavelet denoising," Proc. IEEE Asilomar Conf.,
Monterey, CA., Oct. 26-29, 2008.
pdf

- T. Hinamoto, T. Oumi, and W.-S. Lu, "Jointly optimized error-feedback and realization
for roundoff minimization in a class of 2-D state-space digital filters," Proc. 8th IEEE Int.
Symp. on Signals, Circuits and Systems, pp. 561-564, Iasi, Romania, July 12-13, 2007.
pdf
- H. Zhang and W.-S. Lu, "An effective termination criterion for the Rudin-Osher-Fatemi
algorithm for image restoration," Proc. IEEE PacRim Conf., pp. 489-492, August 22-24,
Victoria, Canada, 2007.
pdf
- T. Hinamoto, O. I.. Omoifo, and W.-S. Lu,"Frequency-weighted l2-sensitivity
minimization for 2-D state-space digital filters subject to l2-scaling constraints by a
qausi-Newton method," Proc. 15th European Signal Processing Conference (EUSIPCO), pp.
1058-1063, Poznan, Poland, September 3-7, 2007.
pdf
- Y. Chen, M. D. Adams, and W.-S. Lu, "Design of optimal quincunx filter banks for image coding via
sequential quadratic programming," Proc. ICASSP 2007, vol. III, pp. 897-900, Honolulu,
Hawaii, April 2007.
pdf
- A.-M. Sevcenco and W.-S. Lu, "Combined adaptive and averaging strategies for JPEG based low bit-rate
image coding," to be presented at CCECE 2007, Vancouver, April 2007.
pdf
- Y. H. Zhang, W.-S. Lu and T. A. Gulliver, "Integer QP relaxation based algorithms for ICI
reduction in OFDM systems," to be presented at CCECE 2007, Vancouver, April 2007.
pdf
- W.-S. Lu and T. Hinamoto, "Design of FIR filters with discrete coefficients via polynomial
programming: Towards the global solution," to be presented at ISCAS 2007, New Orleans, May 2007.
pdf
- T. Hinamoto, T. Oumi, O. I. Omoifo, and W.-S. Lu, "On frequency-weighted L2-sensitivity
analysis and minimization of state-space digital filters subject to L2-scaling constraints,"
to be presented at ISCAS 2007, New orleans, May 2007.
pdf
- Y.H. Zhang, W.-S. Lu and T. A. Gulliver, "A successive interference reduction algorithm for
OFDM systems," to be presented at ICC 2007, Glasgow, June 2007.
pdf

- W.-S. Lu, "An argument-principle based stability criterion and application to the design of
IIR digital filters," ISCAS 2006, pp. 4431-4434, Island of Kos, Greece, May 2006.
pdf
- W.-S. Lu, "Design of FIR filters with discrete coefficients via sphere relaxation,"
ISCAS 2006, pp. 2509-2512, Island of Kos, Greece, May 2006.
pdf
- W.-S. Lu and T. Hinamoto, "A second-order cone programming approach for minimax design of 2-D FIR
filters with low group delay," ISCAS 2006, pp. 2521-2524, Island of Kos, Greece, May 2006.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "Peak-to-average power ratio reduction for OFDM systems
based on method of conditional probability and coordinate descent optimization,"
ISCAS 2006, pp. 3950-3954, Island of Kos, Greece, May 2006.
pdf
- Y. Chen, M. D. Adams, and W.-S. Lu, "Design of optimal quincunx filter banks for image coding,"
ISCAS 2006, pp. 2041-2044, Island of Kos, Greece, May 2006.
pdf
- T. Hinamoto, O. I. Omoifo, and W.-S. Lu, "Realization of MIMO linear discrete-time systems with
minimum L2-sensitivity and no overflow oscillations," ISCAS 2006, pp. 5215-5218, Island of Kos, Greece,May 2006.
pdf
- A.-M. Sevcenco and W.-S. Lu, "Adaptive down-scaling techniques for JPEG-based low bit-rate image coding,"
Proc. 6th IEEE Int. Symp. Signal Processing and Information Technology (ISSPIT), pp. 349-354, Vancouver, Agust 2006.
pdf
- T. Hinamoto, T. Oumi, and W.-S. Lu, "Roundoff noise minimization for a class of 2-D state-space digital
filters using separate/joint optimization of error feedback and realization," Proc.49th Midwest Symp. Circuits
and Systems, San Juan, Puerto Rico, August 2006.
pdf
- W.-S. Lu, "Digital filter design: Global solutions via polynomial optimization," 2006 IEEE Asia Pacific
Conf. on Circuits and Systems, pp. 49-52, Singapore, Dec. 2006. (received Best Paper Award of the 2006 IEEE APCCAS)
pdf
- W.-S. Lu and A.-M. Sevcenco, "Design of optimal decimation and interpolation filters for low bit-rate
image coding," 2006 IEEE Asia Pacific Conf. on Circuits and Systems, pp. 378-381, Singapore, Dec. 2006.
pdf
- T. Hinamoto, Y. Shibata, and W.-S. Lu, "Minimization of L2-sensitivity for 2-D separable-denominator
state-space digital filters subject to L2-scaling constraints," 2006 IEEE Asia Pacific Conf. on Circuits
and Systems, pp. 390-393, Singapore, Dec. 2006.
pdf

- W.-S. Lu, "Design of FIR digital filters with discrete coefficients via convex programming,"
ISCAS 2005, pp. 1831-1834, Kobe, Japan, May 2005.
pdf
- W.-S. Lu and T. Hinamoto, "A new minimax design for 2-D FIR filters with low group delay,"
ISCAS 2005, pp. 2028-2031, Kobe, Japan, May 2005.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "Peak-to-average power ratio reduction algorithms for OFDM
systems via constellation extension," ISCAS 2005, pp. 2615-2618, Kobe, Japan, May 2005.
pdf
- T. Hinamoto, K.-I. Iwata, and W.-S. Lu, "Minimization of L2-sensitivity for a class of 2-D
state-space digital filters subject to L2-scaling constraints," ISCAS 2005, pp. 2401-2404,
Kobe, Japan, May 2005.
pdf
- T. Hinamoto, K.-I. Iwata, and W.-S. Lu, "State-space digital filters with minimum L2-sensitivity
subject to L2-scaling constraints," ICASSP 2005, vol. IV, pp. 265-268, Philadelphia, PA.,
March 2005.
pdf
- Y. Chen, M. D. Adams, and W.-S. Lu, "Symmetric extension for two-channel quincunx
filter banks", ICIP 2005, vol. I, pp. 461-464, Genova, Italy, Sept. 2005.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "New peak-to-average power-ratio reduction
algorithms for OFDM systems using constellation extension", PacRim 2005, pp. 514-517, Victoria,
BC, Aug. 2005.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "Application of sphere decoding in intercarrier-
interference reduction for OFDM systems", PacRim 2005, pp. 360-363, Victoria, BC, Aug. 2005.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "An iterative intercarrier¨Cinterference reduction
algorithm for OFDM systems", PacRim 2005, pp. 538-541, Victoria, BC, Aug. 2005.
pdf
- Y. Chen, M. D. Adams, and W.-S. Lu, "Symmetric extension for quincunx filter banks",
PacRim 2005, pp. 542-545, Victoria, BC, Aug. 2005.
pdf
- Y. Zhang, W.-S. Lu, and T. A. Gulliver, ¡°Recursive multiuser detection for DS-UWB
systems, PacRim 2005, pp. 534-537, Victoria, BC, Aug. 2005.
pdf
- T. Hinamoto, K.-I. Iwata, and W.-S. Lu, "L2-sensitivity minimization for a class of
2-D digital filters using a quasi-Newton method," MWSCAS' 2005, Cincinnati, August 2005.
pdf

- W.-S. Lu, "Minimax design of FIR filters with low group delay using enhanced sequential
quadratic programming," Proc. ISCAS 2004, vol. III. pp. 117-120, Vancouver, May 2004.
pdf
- W.-S. Lu and T. Hinamoto, "Improved design of frequency-response-masking filters using
enhanced sequential quadratic programming," Proc. ISCAS 2004, vol. V, pp. 528-531,
Vancouver, May 2004.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "New algorithm for blind adaptive equalization based on
constant modulus criterion," Proc. ISCAS 2004, vol. V, pp. 21-24, Vancouver, May 2004.
pdf
- T. Hinamoto, H. Ohnishi, and W.-S. Lu, "Minimization of L2-sensitivity for state-space digital
filters subject to L2-scaling constraints," Proc. ISCAS 2004, vol. III, pp. 137-140,
Vancouver, May 2004.
pdf
- T. Hinamoto, H. Ohnishi, and W.-S. Lu, "Minimization of L2-sensitivity for 2-D state-space digital
filters subject to L2-scaling constraints," Proc. ISCAS 2004, vol. III, pp. 249-252,
Vancouver, May 2004.
pdf
- T. Hinamoto, H. Ohnishi, and W.-S. Lu, "Joint optimization or error feedback and coordinate
transformation for roundoff noise minimization in 2-D state-space digital filters,"
Proc. ISCAS 2004, vol. III, pp. 141-144, Vancouver, May 2004.
pdf

- T. Hinamoto, K. Higashi, and W.-S. Lu, "Jointly optimized error feedback and realization for roundoff noise minimization in 2-D state-space digital filters," ICASSP 2003, vol. III, p. 321-324, Hong Kong, April 2003.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "Peak-to-average power-ratio reduction via channel hopping for downlink CDMA systems," ISCAS, vol. II, pp. 236-239, Bangkok, May 2003.
pdf
- W.-S. Lu, R. Bregovic, and T. Saramaki,"Efficient design of perfect-reconstruction biorthogonal cosine-modulated filter banks using convex Lagrangian relaxation and alternating null-space projection," ISCAS, vol. IV, pp. 141-144, Bangkok, May 2003.
pdf
- W.-S. Lu and T. Hinamoto, "Optimal design of FIR frequency-response-masking filters using second-order cone programming," ISCAS, vol. III, pp. 878-881, Bangkok, May 2003.
pdf
- W.-S. Lu and A. Antoniou, "New method for weighted low-rank approximation of complex-valued matrices and its application for the design of 2-D digital filters," ISCAS, vol. III, pp. 694-697, Bangkok, May 2003.
pdf
- T. Hinamoto, H. Ohnishi, and W.-S. Lu, "Joint optimization of error feedback and coordinate transformation for roundoff noise minimization in state-space digital filters," ISCAS, vol. IV, pp. 241-244, Bangkok, May 2003.
pdf
- T. Hinamoto, K. Higashi, and W.-S. Lu, "Roundoff noise minimization in 2-D state-space using error feedback," ISCAS, vol. IV, pp. 472-475, Bangkok, May 2003.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "New peak-to-average power-ratio reduction algorithms for multicarrier communications," Proc. PacRim Conf. on Communications, Computers, and Signal Processing, pp. 115-118, Victoria, BC, Aug. 28-30, 2003.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "A VCM approach to multiuser detection for DS-CDMA frequency selective fading channels," Proc. PacRim Conf. on Communications, Computers, and Signal Processing, pp. 430-433, Victoria, BC, Aug. 28-30, 2003.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "A recursive convex programming approach for DS-CDMA multiuser detection," Proc. PacRim Conf. on Communications, Computers, and Signal Processing, pp. 434-437, Victoria, BC, Aug. 28-30, 2003.
pdf
- W.-S. Lu and T. Hinamoto, "Optimal design of IIR digital filters with robust stability using conic quadratic programming," Proc. 3rd Int. Symp. on Image and Signal Processing and Analysis, pp. 54-59, Rome, Italy, Sept. 18-20, 2003.
pdf
- W.-S. Lu and T. Hinamoto, "Jointly optimized error-feedback and realization for roundoff noise minimization in state-space digital filters," Proc. 3rd Int. Symp. on Image and Signal Processing and Analysis, pp. 60-65, Rome, Italy, Sept. 18-20, 2003.
pdf

- W.-S. Lu and T. Hinamoto, "Minimax design of complex-coefficient FIR
filters with low group delay," Int. Conf. on Fundamentals of Electronics,
Communications and Computer Sciences, Tokyo, Japan, March 27-28, 2002.
pdf
- W.-S. Lu, "Minimax design of nonlinear-phase FIR filters: A least-pth
approach," ISCAS¹ 2002, vol. 1, pp. 409-412, Phoenix, AZ., May 2002.
pdf
- W.-S. Lu and A. Antoniou, "Minimax design of 2-D IIR digital filters
using sequential semidefinite programming," ISCAS¹ 2002, vol. 3, pp. 353-356, Phoenix, AZ., May
2002.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "Subspace estimation-based
constrained optimization method for multipath CDMA channels," ISCAS¹ 2002, vol. 1, pp. 9-12,
Phoenix, AZ., May 2002.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "An improved peak-to-average
power-ratio reduction algorithm for multicarrier communications," ISCAS¹
2002, vol. 1, pp. 5-8, Phoenix, AZ., May 2002.
pdf
- W.-S. Lu, "Minimax design of 2-D FIR filters with low group delay using
convex optimization," EUSIPCO¹2002, pp. 199-202, Toulouse, France, Sept. 3-6, 2002.
pdf
- W.-S. Lu, "Design of signal adapted biorthogonal filter banks using second-order cone programming," 2nd Int. Workshop on Spectral Methods and Multirate Signal Processing, Toulouse, France, Sept. 7-8, 2002. pdf

- W.-S. Lu, "Design of FIR filters with discrete coefficients: A
semidefinite programming relaxation approach,² ISCAS 2001, vol. 2, pp.
297-300, Sydney, Australia, May 2001.
pdf
- W.-S. Lu, "Design of 2-D FIR filters with power-of-two coefficients: A
semidefinite programming relaxation approach,² ISCAS 2001, vol. 2, pp.
549-552, Sydney, Australia, May 2001.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "A near-optimal multiuser detector
for CDMA channels using semidefinite programming relaxation,² ISCAS 2001,
vol. 4, pp. 298-301, Sydney, Australia, May 2001.
pdf
- P. Sristi, W.-S. Lu, and A. Antoniou, "A new variable-step-size LMS
algorithm and it¹s application on subband adaptive filtering for echo
cancellation,² ISCAS 2001, vol. 2, pp. 721-724, Sydney, Australia, May 2001.
pdf
- W.-S. Lu and A. Antoniou, "A new method for the design of stable IIR 2-D
digital filters using sequential semidefinite programming," ISCAS 2001, vol.
2, pp. 553-556, Sydney, Australia, May 2001.
pdf
- J. S. Mao, W.-S. Lu, A. Antoniou and S.C. Chan, "Design and
multiplierless implementation of two-channel biorthogonal IIR filter banks
with low system delay," ISCAS 2001, vol. 2, pp. 465-468, Sydney, Australia,
May 2001.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "A constant-modulus algorithm for
blind multiuser detection in DS-CDMA systems with antenna arrays," Pacific
Rim Conf., pp. 234-237, Victoria, BC, Canada, Aug. 2001.
pdf
- Y. J. Kou, W.-S. Lu, and A. Antoniou, "Application of space-time block
coding in DS-CDMA communication systems," Pacific Rim Conf., pp. 132-135,
Victoria, BC, Canada, Aug. 2001.
pdf
- J. S. Mao, W.-S. Lu, and A. Antoniou, "Multiplierless implementation of
filtered multitone modulation for very-high-rate digital subscriber lines,"
Pacific Rim Conf., pp. 168-171, Victoria, BC, Canada, Aug. 2001.
pdf
- X. M. Wang, W.-S. Lu, and A. Antoniou, "Blind adaptive multiuser detection using a vector constant-modulus approach," Asilomar Conference, Nov. 2001. pdf

- W.-S. Lu, "Design of stable IIR digital filters using semidefinite
programming," Proc. ISCAS Œ2000, vol. 1, pp. 355-358, Geneva, May 2000.
pdf
- W.-S. Lu, "Design of stable 2-D IIR digital filters using iterative
semidefinite programming," Proc. ISCAS Œ2000, vol. 1, pp. 395-398, Geneva, May 2000.
pdf
- W.-S. Lu and A. Antoniou, "Design of digital filters and filter banks by
optimization: A state of the art review," Proc. EUSIPCO 2000, vol. 1, pp.
351-354, Tampere, Finland, Sept. 2000.
pdf
- W.-S. Lu and A. Antoniou, "Optimal design of two-channel biorthogonal filter banks," Proc. EUSIPCO 2000,vol. 1, pp. 373-376, Tampere, Finland, Sept. 2000. pdf

- X.F. Wang, W.-S. Lu, and A. Antoniou, "Constrained minimum-BER
multiuser detection," Proc. ICASSP ¹99, vol. 5, pp. 2603-2606, March 1999.
pdf
- W.-S. Lu, "Minimum-norm realization of 2-D recursive filters: A
quasiconvex programming approach," Proc. ISCAS ¹99, vol. III, pp. 335-338,
May 1999.
pdf
- W.-S. Lu and T.-B. Deng, "An improved weighted least-squares design of
FIR digital filters with variable fractional delay," Proc. ISCAS ¹99, vol.
III, pp. 383-386, May 1999.
pdf
- W.-S. Lu, "Design of nonlinear-phase FIR digital filters: A semidefinite
programming approach," Proc. ISCAS¹ 99, vol. III, pp. 263-266, May 1999.
pdf
- S. Saab, W.-S. Lu, and A. Antoniou, "Design and implementation of
low-power IIR digital filter systems," Proc. ISCAS ¹99, vol. IV, pp. 391-394,
May 1999.
pdf
- W.-S. Lu and A. Antoniou, "Design of nonrecursive 2-D digital filters
using semidefinite programming," Proc. ISCAS ¹99, vol. V, pp. 29-32, May 1999.
pdf
- J. Su, A. Annamalai, and W.-S. Lu, "Optimization of power allocation in a
multicell DS/CDMA system with heterogeneous traffic," Proc. ICC ¹99, pp.
1136-1140, Vancouver, June 1999.
pdf
- W.-S. Lu, "Semidefinite programming: A versatile tool for the analysis
and design of digital filters," Proc. CCECE, pp. 745-750, Edmonton, May 1999.
pdf
- T.-B. Deng and W.-S. Lu, "Discretization-free method for designing
variable fractional delay 2-D digital filters," Proc. Int. Tech. Conf.
Circuits/Systems, Computers and Communications, pp. 1310-1313, Sado, Japan,
July 1999.
- P. Sristi, W.-S. Lu, and A. Antoniou, "Design and application of an
optimum orthogonal wavelet filter for echo cancellation," Proc. PacRim ¹99,
pp. 79-82, Victoria, Aug. 1999.
pdf
- D. Sasmal, W.-S. Lu, D.J. Shpak, and A, Antoniou, "Interpolation
techniques for a LIDAR profile system," Proc. PacRim ¹99, pp. 185-188,
Victoria, Aug. 1999.
pdf
- J. Monera-Llorca, W.-S. Lu, and V.K. Bhargava, "An improved
wavelet-packet-division multiple access system," Proc. PacRim ¹99, pp.
495-498, Victoria, Aug. 1999.
pdf
- J. Monera-Llorca, W.-S. Lu, and V.K. Bhargava, "Wavelet-packet-based
signatures for asynchnous CDMA systems," Proc. PacRim ¹99, pp. 499-502,
Victoria, Aug. 1999.
pdf
- X.F. Wang, W.-S. Lu, and A. Antoniou, "Equalization for partially
bandwidth-occupied multicarrier transceivers," Proc. PacRim ¹99, pp. 568-571,
Victoria, Aug. 1999.
pdf
- X.F. Wang, W.-S. Lu, and A. Antoniou, "Adaptive equalization for partially bandwidth-occupied ADSL transceivers," Proc. PacRim ¹99, pp. 572-575, Victoria, Aug. 1999. pdf

- T. Hinamoto, S. Yokoyama, and W.-S. Lu, "Weighted L2 sensitivity
minimization of 2-D discrete systems," Proc. ISCAS¹98, vol. 5, pp. 82-85, May 1998.
pdf
- W.-S. Lu, "On stability robustness of discrete-time systems: The
complex-variable approach of Mastorakis," Proc. ISCAS¹98, vol. 3, pp. 346-349, May 1998.
pdf
- X.F. Wang, W.-S. Lu, and A. Antoniou, "A genetic-algorithm-based
multiuser detector for multiple-access communications," Proc. ISCAS¹98, vo. 4, pp. 534-537, May
1998.
pdf
- Y. Mo, W.-S. Lu, and A. Antoniou, "An iterative quadratic programming
method for multirate filter design," Proc. ISCAS¹98,vol. 5, pp. 41-44, May 1998.
pdf
- W.-S. Lu and A. Antoniou, "Optimal orthogonal and biorthogonal wavelets
using linear parameterization of halfband filters," Proc. ISCAS¹98, vol. 5, pp. 102-105, May
1998. (invited)
pdf
- X.F. Wang, W.-S. Lu, and A. Antoniou, "Efficient implementation of
linear multiuser detectors," Proc. ICASSP¹98, pp. 3221 3224, May 1998.
pdf
- X.F. Wang, W.-S. Lu, and A. Antoniou, "Blind multiuser detection for CDMA
frequency-selective fading channels," Proc. Int. Symp. on Advances in
Digital Filtering and Signal Processing, pp. 101105, June 1998.
pdf
- S. Saab, A. Antoniou, and W.-S. Lu, "Design of linear-phase recursive
digital filters by optimization," Proc. Int. Symp. on Advances in Digital
Filtering and Signal Processing, pp. 87 91, June 1998.
pdf
- S. Saab, W.-S. Lu, and A. Antoniou, "Sequential design of IIR digital filters for low-power DSP applications," Proc. Int. Symp. on Advances in Digital Filtering and Signal Processing, pp. 96 100, June 1998. pdf

- W.-S. Lu and A. Antoniou, "Simultaneous noise reduction and feature
enhancement of images using diomond-shaped 2-D filter banks," Proc.
ISCAS'97, pp. 737-740, June 1997. (invited)
pdf
- W.-S. Lu, "A parameterization method for the design of IIR digital
filters with prescribed stability margin," Proc. ISCAS'97, pp. 2188-2191,
June 1997.
pdf
- W.-S. Lu, A. Antoniou and H. Xu, "A direct method for the design of 2-D
nonseparable filter banks," Proc. ISCAS'97, pp. 2381-2384, June 1997.
pdf
- W.-S. Lu, "Design of stable IIR digital filters with equiripple passbands
and peak-constrained least-squares stopbands," Proc. ISCAS'97, pp. 2192-2195,
June 1997.
pdf
- Y. Mo, W.-S. Lu, and A. Antoniou, "An iterative method for the design of
partial filter banks," Proc. 40th Midwest Sypm. CAS, vol. 2, pp. 679-682, Aug. 1997.
pdf
- W.-S. Lu, and A. Antoniou, S. Saab, "Sequential design of FIR digital
filters for low-power DSP applications," Proc. 31th Asilomar Conf., vol. 1, pp. 701-704, Pacific
Grove, CA., Nov. 1997.
pdf
- S. Saab, W.-S. Lu, and A. Antoniou, "Design of quadrature mirror-image
filter banhs for low-power applications," Proc. IEEE Pacific Rim Conf., pp.
178-181, Aug. 1997.
pdf
- Y. Mo, W.-S. Lu, and A. Antoniou, "Design methods for partial filter
banks using interpolation," Proc. IEEE Pacific Rim Conf., pp. 473-476, Aug.
1997.
pdf
- Y. Mo, W.-S. Lu, and A. Antoniou, "Embedded coding for 1-D signals using
zerotrees of wavelet coefficients," Proc. IEEE Pacific Rim Conf., pp.
306-309, Aug. 1997. (invited)
pdf
- X.-F. Wang, W.-S. Lu, and A. Antoniou, "Multiuser detection for
multiple-access communications using wavelet-packet transforms," Proc. IEEE
Pacific Rim Conf., pp. 607-610, Aug. 1997.
pdf
- W.-S. Lu, "Linear parameterization of orthogonal wavelets," Proc. 31th
Asilomar Conf., vol. 2, pp. 1249-1253, Pacific Grove, CA., Nov. 1997.
pdf
- W.-S. Lu, "Wavelet approaches to still image denoising," Proc. 31th Asilomar Conf., vol. 2, pp. 1705-1709, Pacific Grove, CA., Nov. 1997. pdf

- W.-S. Lu, "Design of two-channel equal-length linear-phase filter banks:
An optimization approach," Proc. 30th Annual Conf. Information Science and
Systems, pp. 463 466, Princeton, NJ., March 1996.
- W.-S. Lu, "Design of 2-D IIR filters using SVD and iterative quadratic
programming," Proc. 30th Annual Conf. Information Science and Systems, pp.
493 496, Princeton, NJ., March 1996.
- W.-S. Lu, "Design of two-dimensional FIR filters using norm-preserving
dilation," Proc. ISCAS'96, vol. 2, pp. 225 - 228, Atlanta, GA., May 1996.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "Low-delay cosine-modulated QMF banks
for MPEG audio compression," Proc. ISCAS'96, vol. 2, pp. 340 - 343, Atlanta,
GA., May 1996.
pdf
- W.-S. Lu, H. Luo, and A. Antoniou, "Recent results on model reduction
methods for 2-D discrete systems," Proc. ISCAS'96, vol. 2, pp. 348 - 351,
Atlanta, GA., May 1996.
pdf
- D. K. Fenger and W.-S. Lu, "Distance calculations for robotics using
quadratic programmimg," presented at the 5th SIAM Conf. on Optimization,
Victoria, B.C., May 1996.
- W.-S. Lu, "Design of perfect reconstruction QMF banks: A parameterization
method," Proc. Asilomar'96, pp. 1329-1333, Nov. 1996.
pdf
- W.-S. Lu, "Optimal approximation of multidimensional signals with applications," Proc. Asilomar'96, pp. 510-514, Nov. 1996. pdf

- W. Cheng, W.-S. Lu, and A. Antoniou, "Noise filtering and enhancement of
seabed topography for airborne laser bathymetry," Proc. IEEE Pacific Rim
'95., pp. 631-634, Victoria, May 1995.
pdf
- W. Cheng, W.-S. Lu, and A. Antoniou, "Efficient waveform decomposition
for airborne laser bathymetry," Proc. IEEE Pacific Rim '95., pp. 627-630,
Victoria, May 1995.
pdf
- C. M. Leung and W.-S. Lu, ³Optimal determination of regularization
parameters and the stabilizing operator," Proc. IEEE Pacific Rim '95., pp.
403-406, Victoria, May 1995.
pdf
- C. M. Leung and W.-S. Lu, "On the use of Laplacian operator in edge
detection and image restoration," Proc. IEEE Pacific Rim '95., pp. 411-415,
Victoria, May 1995.
pdf
- H. Luo, W.-S. Lu and A. Antoniou, "A weighted balanced realization of 2-D
discrete systems," Proc. presentation at ISCAS'95, pp. 357-360, May 1995.
pdf
- H. Luo, W.-S. Lu and A. Antoniou, ³New algorithms for structurally
balanced model reduction of 2-D discrete systems," Proc. ISCAS ¹95, pp.
361-364, May 1995.
pdf
- H. Xu, W.-S. Lu and A. Antoniou, ³Design of perfect reconstruction QMF
banks by a null-space projection method," Proc. ISCAS ¹95, pp. 965-968, may
1995.
pdf
- H. Luo, W.-S. Lu, and A. Antoniou, "Determination of trasfer matrix from
the 2-D Fornasini-Marchesini state space model," Proc. 38th Midwest Symp. CAS,
pp. 677 - 680, Rio, Brazil, August 1995.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "Low-Delay QMF banks with equiripple
complex reconstruction error,² Proc. 38th Midwest Symp. CAS, pp. 681 - 684,
Rio, Brazil, August 1995.
pdf
- W.-S. Lu, "Is the SVD-based low-rank approximation optimal ?", Proc. 38th
Midwest Symp. CAS, pp. 470 - 473, Rio, Brazil, August 1995.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "An efficient algorithm for the design
of Multi-channal cosine-modulated QMF banks," Proc. 38th Midwest Symp. CAS,
pp. 1106 - 1109, Rio, Brazil, August 1995.
pdf
- H. Luo, W.-S. Lu, and A. Antoniou, "A weighted quasi-balanced realization
for 2-D discrete systems,² Proc. 29th Asilomar Conf., pp. 996 1000, Montery
CA., Nov. 1995.
pdf
- W.-S. Lu, H. Xu, and A. Antoniou, "A new algebraic method for the design
of generalized QMF banks," Proc. 29th Asilomar Conf., pp. 46 50, Montery
CA., Nov. 1995.
pdf
- G. Robertson, R. L. Kirlin, and W.-S. Lu, "An adaptive moving window multiple sidelope canceller for seismic data," Proc. 29th Asilomar Conf., pp. 1086 1089, Montery CA., Nov. 1995. pdf

- W.-S. Lu, "Some new results on stability and stability robustness of
Fornasini-Marchesini state-space 2-D digital filters," Proc. IEEE Southeast
Conf. "94, Miami, FL, Apr. 1994.
pdf
- H. Xu, W.-S. Lu and A. Antoniou, "Improved methods for the design of 1-D
and 2-D QMF banks," Proc. ISCAS '94, London, UK, vol. 2, pp. 153-156, May
1994.
pdf
- Q.-H. Meng and W.-S. Lu, "A unified approach to stable force/position
control of robot manipulators," in Proc. American Control Conference, pp. 200
- 201, Baltimore, MD, June 1994.
- C.-M. Leung and W.-S. Lu, "A two-step regularization approach for image
noise removal," Proc. 37th Midwest Symp. Circuits Syst., pp. 856-859,
Lafayette, Aug. 1994.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "An iterative algorithm for the design
of 2-D nonseparable diamond-shaped filter banks," Proc. 37th Midwest Symp.
Circuits Syst., pp. 785-788, Lafayette, Aug. 1994.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "A novel time-domain approach for the
design of quadrature mirror filter banks," Proc. 37th Midwest Symp. Circuits
Syst., pp. 1032-1035, Lafayette, Aug. 1994.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "A new approach for the design of
low-delay quadrature mirror filter banks," Proc. Asilomar Conference, pp.
1001-1004, Pacific Grove, Oct. 1994.
pdf
- Q.-H. Meng and W.-S. Lu, "Adaptive control of industrial robots using regressor dynamics: Algorithms and experimental results," Proc. CDC, Dec. 1994.

- W.-S. Lu, Y. Cui, and R.L. Kirlin, "Least p-th optimization for the
design of 1-D filters with arbitrary amplitude and phase responses," Proc.
IEEE ICASSP, vol. 3, pp. 61-64, Apr. 1993.
pdf
- W.-S. Lu, H. Luo and A. Antoniou, "New algorithms for the derivation of
the transfer function matrix of 2-D filters," Proc. IEEE ISCAS, pp. 591-594,
May 1993.
pdf
- W.-S. Lu and Q.-H. Meng, "An improved load distribution scheme for
coordinating manipulators," Proc. IEEE Int. Conf. Robotics and Automation,
vol. 1, pp.523-528, May 1993.
pdf
- M. Erlic, and W.-S. Lu, "A reduced-order adaptive velocity observer for
manipulator control," Proc. IEEE Int. Conf. Robotics Automation, vol 2, pp.
328-333, May 1993.
pdf
- C.M. Leung, and W.-S. Lu, "A modified Wiener filter for the
restoration of blurred images," Proc. IEEE Pacific Rim Conf., pp. 166-169,
May 1993.
pdf
- C.M. Leung and W.-S. Lu, "Detection of edges of noisy images by 1-D and
2-D linear FIR digital filters," Proc. 1993 IEEE Pacific Rim Conf., pp.
228-231, May 1993
pdf
- D.K. Fenger, and W.-S. Lu, "Path planning for redundant manipulators
using iterative optimization techniques," Proc. 1993 IEEE Pacific Rim
Conf., pp. 618-621, May 1993.
pdf
- Q.-H. Meng and W.-S. Lu, "A neural network approach to adaptive robot
motion control," Proc. 1993 IEEE Pacific Rim Conf., pp. 606-609, May 1993.
pdf
- Luo, H., W.-S. Lu, and A. Antoniou, "Numerical solution of the 2-D
Lyapunov equation and application in stable order reduction of recursive
digital filters," Proc. 1993 IEEE Pacific Rim Conf., pp. 232-235, May 1993.
pdf
- Q.-H. Meng and W.-S. Lu, "An adaptive control scheme for robot
manipulators with flexible joints," Proc. the 36th Midwest Symp. Circuits
Syst., Detroit, Aug. 1993.
pdf
- M. Erlic, and W.-S. Lu, "Impedance control without using velocity
measurements," Proc. the 2nd IEEE Conf. Control Applications, vol. 1, pp.
47-52, Vancouver, Sept. 1993.
pdf
- M. Erlic, and W.-S. Lu, "A reduced order observer for underwater
manipulators using potentiometers for position measurements," Proc.
Oceans'93, vol. 2, p. 307-312, Victoria, B.C., Oct. 1993.
pdf
- C.M. Leung and W.-S. Lu, "An L-curve approach to optimal determination
of regularization parameter in image restoration," Proc. CCECE, pp.
1021-1024, Vancouver, Sept. 1993.
pdf
- C.M. Leung and W.-S. Lu, "A two-phase blind restoration algorithm,"
Proc. CCECE, pp. 1029-1032, Vancouver, Sept. 1993.
pdf
- Q.-H. Meng and W.-S. Lu, "An adaptive control scheme for robots with
unknown dynamics," Proc. CCECE, pp. 833-836, Vancouver, Sept. 1993.
pdf
- H. Xu, W.-S. Lu, and A. Antoniou, "A new design of 2-D non-separable
hexagonal quadrature-mirror-filter banks," Proc. CCECE, pp. 35-38,
Vancouver, Sept. 1993.
pdf
- H. Xu, W.-S. Lu , and A. Antoniou, "A new approach for the design of FIR
analysis-synthesis filter banks with short reconstruction delays," Proc.
CCECE, pp. 30-34, Vancouver, Sept. 1993.
pdf
- F. El-Guibaly, A. Tawfik, W.-S. Lu and Abdel-Raheem, "Synthesizing
systolic arrays: Basic Tools," Proc. CCVLI ¹93, pp. 7.22-7.27, Banff,
Alberta, Nov., 1993.
- C.M. Leung and W.-S. Lu, "A generalization of Tikhonov-Miller regularization method for image restoration," Porc. 27th Asilomar Conf., vol. 2, pp. 856-860, Nov. 1993.

- H. Luo, W.-S. Lu and A. Antoniou, "An advanced software tool for the
design of two-dimensional digital filters," Proc. ISCAS, pp. 1420-1423, May
1992.
pdf
- M. Erlic and W.-S. Lu, "Manipulator control with an exponentially
stable velocity observer," Proc. American Control Conf., Chicago, June 1992.
- Q.-H. Meng and W.-S. Lu, "Application of regressor dynamics to real-time
adaptive control of robot motion," presented at IRIS/Precarn 2nd Annual
Conf., June 1992.
- Q.-H. Meng and W.-S. Lu, "Adaptive contact force control of redundant
robots using manipulator regressor dynamics," Proc. IRIS/Precarn 2nd Annual
Conf., p. 65, Montreal, June 1992.
- Z. Cai, J. Bornemann, and W.-S. Lu, "Optimization of shaped wire
antennas for asymmetric excitation," Proc. 1992 Int. Conf. Microwave and
Communications, pp. 316-319, Nanjin, China, June 1992.
- Q.-H. Meng and W.-S. Lu, "Implementation of model-based adaptive
position and force control algorithm on a PUMA 560 robot," Proc. 1992 IASTED
Conf. Control and Robotics, pp. 91-94, Vancouver, Aug. 1992.
- C.-M. Leung and W.-S. Lu, "Image restoration by 2-D recursive
regularization filters," Proc. Canadian Conf. ECE, pp. WM3.24.1-4, Toronto,
Sept. 1992.
- C.-M. Leung and W.-S. Lu, "Image restoration by 2-D recursive
regularization filters," Proc. Canadian Conf. ECE, pp. MA 3.6.1-4, Toronto,
Sept. 1992.
- Q.-H. Meng and W.-S. Lu, "Experimental evaluation of the effect of dynamics on robot controllers," Proc. Canadian Conf. ECE pp. WM 6.24.1-4, Toronto, Sept. 1992.

- W.-S. Lu and Q.-H. Meng, "Recursive computation of manipulator
regressor and its application to adaptive motion control of robots," Proc.
IEEE Pacific Rim Conf., pp. 170-173, May 1991.
pdf
- M. Erlic, K. Jones and W.-S. Lu, "Hardware interface configurations for
motion control of the PUMA-560 and Mitsubishi RM-501," Proc. IEEE Pacific
Rim Conf., pp. 266-269, May 1991.
pdf
- W.-S. Lu and A. Antoniou, "Application of the singular-value
decomposition for the Design of 2-D digital filters," Proc. IEEE Pacific Rim
Conf. Communications, Computers and Signal Processing, Victoria, pp.
506-509, May, 1991.
pdf
- Q.-H. Meng, A. Hasan, W.-S. Lu and V. K. Bhargava, "On the
minimization of system matrix for the design of 2-D and 3-D digital
filters," Proc. IEEE Pacific Rim Conf., pp. 396-399, May 1991.
pdf
- W.-S. Lu and Q.-H. Meng, "On efficient computation of manipulator
regressor and its application to adaptive control of robots," Proc.
IRIS-Precarn Conf., p. I-44, Vancouver, June 1991.
- W.-S. Lu, H.-P. Wang, and A. Antoniou, "On the evaluation of the
controllability and observability gramians of 2-D digital filters," Proc.
IEEE Int. Symp. Circuits Syst., Singapore, pp. 602-605, June 1991.
pdf
- W.-S. Lu and A. Antoniou, "Design of 2-D digital filters with arbitrary
amplitude and phase responses by using the singular value decomposition,"
Proc. IEEE Int. Symp. Circuits Syst., Singapore, pp. 618-621, June 1991.
pdf
- C.-M. Leung and W.-S. Lu, "Application of two-dimensional quadratic
Volterra filters to image restoration," Proc. Canadian Conf. ECE, pp.
54.1.1-4, Sept. 1991.
- W.-S. Lu, H.-P. Wang, and A. Antoniou, "Design of 3-D digital filters
by using outer-product array decomposition," Proc. 3rd Int. Conf. Advances in
Communications and Control Systems, Oct. 1991.
- Q.-H. Meng and W.-S. Lu , "On motion coordination of multirobot systems," Proc. 3rd Int. Conf. Advances in Communications and Control Systems, Oct. 1991.

- W.-S. Lu and Q.-H. Meng, "Adaptive impedance control of mechanical
manipulators," Proc. 3rd Int. Symp. Robotics and Manufacturing, Vancouver,
pp. 329-336, July 1990.
- W.-S. Lu and Q.-H. Meng, "A load distribution scheme for multi-arm
coordinating robots," Proc. 33rd Midwest Symp. Circuits Syst., Calgary, pp.
673-676, Aug. 1990.
pdf
- M. Erlic and W.-S. Lu, "A comparative evaluation of adaptive, robust
and classical feedback controllers used in unconstrained trajectory tracking
for robot manipulators," Proc. 33rd Midwest Symp. Circuits Syst., Calgary,
pp. 673-676, Aug. 1990.
pdf
- W.-S. Lu and Q.-H. Meng, "A closed-form formula for the manipulator
regressor," Proc. 1990 Canadian Conf. ECE, pp. 2.5.1-2. 5.4, Sept. 1990.
- W.-S. Lu, "A new stability test for 2-D digital filters," Proc. 1990 Canadian Conf. ECE, pp. 61.4.1-61.4.4, Sept. 1990.

- W.-S. Lu, H.-P. Wang, and A. Antoniou, "Design of two-dimensional
digital filters using singular-value decomposition and balanced
approximation method," Proc. IEEE Int. Symp. Circuits Syst., Portland, pp.
1656-1659, May 1989.
pdf
- S. Sunder, Y. Su, A. Antoniou, and W.-S. Lu, "Design of digital
differentiators satisfying pre-scribed specifications using optimization
techniques," Proc. IEEE Int. Symp. Circuits Syst., Portland, pp. 1652-1655,
May 1989.
pdf
- H.-P. Wang, W.-S. Lu, and A. Antoniou, "Design of digital filters using
system-theoretic concepts," Proc. Canadian Conf. Electrical and Computer
Engineering, Montreal, pp. 479-482, Sept. 1989.
- W.-S. Lu and Q.-H. Meng, "An operational space adaptive control scheme
for mechanical manipulators," Proc. Canadian Conf. ECE pp. 479-482, Sept.
1989.
- W.-S. Lu and M. Erlic, "Robust motion control of manipulators: Design
and experimental evaluation," Proc. Canadian Conf. ECE pp. 57-60, Sept. 1989.
- M. Erlic and W.-S. Lu, "Computer independent driver-sensor interface
for closed-loop control of a mechanical manipulator," Proc. Canadian Conf.
ECE pp. 504-507, Sept. 1989.
- W.-S. Lu, "Stability robustness of delay-differential systems and its computation," Proc. Computing and Computers for Control Syst., IMACS (P. Borne et ed.), pp. 235-237, Dec. 1989.

- W.-S. Lu, "Linear robust control of mechanical manipulators," Proc.
IEEE Int. Symp. Intelligent Control, Arlington, VA, pp. 430-434, Aug. 1988.
pdf
- W.-S. Lu, H.-P. Wang, and A. Antoniou, "Design of two-dimensional FIR
digital filters by using the singular-value decomposition," 1988 Int.
Conf., Advances in Communications and Signal Processing, Baton Rouge, pp.
546-556, Oct. 1988 (invited).
- W.-S. Lu and E. B. Lee, "Structure simplification of 2-D digital
filters: An overview," Proc. 1988 Int. Conf. Advances in Communication and
Control Syst., Baton Rouge, LA, pp. 250-264, Oct. 1988.
- W.-S. Lu, "Simplification of manipulator dynamics and its application to
linear robust control of robots", Proc. 1988 Canadian Conf. ECE, Vancouver,
B.C., pp. 731-733, Nov. 1988.
- W.-S. Lu , "Some properties of balanced approximation for 2-D systems,"
Proc. 1988 Canadian Conf. ECE, Vancouver, B.C., pp. 637-639, Nov. 1988.
- W-S. Lu, "Order reduction of 2-D discrete systems via bounded real balancing," Proc. 27th IEEE Conf. Decision and Control, Austin, TX, pp. 1167-1168, Dec. 1988. pdf

- W.-S. Lu, H.-P. Wang, and A. Antoniou, "Design of two-dimensional
digital filters using singular-value decomposition and balanced
approximation method," Proc. IEEE Int. Symp. Circuits Syst., Portland, pp.
1656-1659, May 1989.
- S. Sunder, Y. Su, A. Antoniou, and W.-S. Lu, "Design of digital
differentiators satisfying pre-scribed specifications using optimization
techniques," Proc. IEEE Int. Symp. Circuits Syst., Portland, pp. 1652-1655,
May 1989.
- H.-P. Wang, W.-S. Lu, and A. Antoniou, "Design of digital filters using
system-theoretic concepts," Proc. Canadian Conf. Electrical and Computer
Engineering, Montreal, pp. 479-482, Sept. 1989.
- W.-S. Lu and Q.-H. Meng, "An operational space adaptive control scheme
for mechanical manipulators," Proc. Canadian Conf. ECE pp. 479-482, Sept.
1989.
- W.-S. Lu and M. Erlic, "Robust motion control of manipulators: Design
and experimental evaluation," Proc. Canadian Conf. ECE pp. 57-60, Sept. 1989.
- M. Erlic and W.-S. Lu, "Computer independent driver-sensor interface
for closed-loop control of a mechanical manipulator," Proc. Canadian Conf.
ECE pp. 504-507, Sept. 1989.
- W.-S. Lu, "Stability robustness of delay-differential systems and its computation," Proc. Computing and Computers for Control Syst., IMACS (P. Borne et ed.), pp. 235-237, Dec. 1989.

- W.-S. Lu, E. B. Lee and Q.-T. Zhang, "Model reduction for 2-D systems,"
Proc. 1986 IEEE Int. Symp. Circuits Syst., pp. 79-82, May 1986.
- W.-S. Lu, A. Antoniou, and P. Agathoklis, "Stability of 2-D digital
filters under parameter variations," Proc. IEEE Int. Symp. Circuits Syst.,
San Jose, pp. 21-25, May 1986.
- W.-S. Lu and E. B. Lee, "Output feedback controller design for linear
retarded systems," Proc. IEEE Int. Symp. Circuits Syst., pp. 21-25, San
Jose, 1986.
- W.-S. Lu, E. B. Lee and Q.-T. Zhang, "Balanced approximation of two-dimensional and delay-differential systems," Proc. 25th Conf. Decision and Control, Athens, Greece, pp. 917-922, Dec. 1986.

- E. B. Lee, W.-S. Lu and N. E. Wu, "Approximation of 2-D digital
filters," Proc. Johns Hopkins Conf. Information Sciences, Mar. 1985.
- E. B. Lee, W.-S. Lu and N. E. Wu, "Reduction of redundant data in
quadratic cost formulation for linear retarded systems," Proc. 1985 IEEE
24th Conf. Control and Decision, pp. 118-122, Dec. 1985.
- W.-S. Lu and A. Antoniou, "2-D state-space digital filters with fewer multipliers," Proc. of the 24th IEEE Conf. Decision and Control, Fort Lauderdale, Florida, pp. 1594-1599, Dec. 1985.

- S. H. Zak, W.-S. Lu and E. B. Lee, "Invariants and canonical forms for
linear systems with delays," Proc. 1984 IEEE 23rd Conf. Decision and
Control, pp. 876-877, 1984.
- D. L. Boley and W.-S. Lu, "Quasi-Kalman decomposition and its
relationship to state feedback," Proc. IEEE Amer. Control Conf., pp.
772-775, June 1984.
- W.-S. Lu, "Identifiability of linear multivariable systems operating in
closed-loop," Proc. 3rd Int. Conf. Systems Engineering, pp. 481-488, Sept.
1984.
- W.-S. Lu, E. B. Lee and S. H. Zak, "Finite dimensional compensator
design for linear retarded systems," Proc. 22nd Allerton Conf., pp. 615-624,
Oct. 1984.
- W.-S. Lu and E. B. Lee, "Model reduction via a Quasi-Kalman
decomposition," Proc. IEEE 23rd Conf. Decision and Control, pp. 149-153,
Dec. 1984.
- E. B. Lee and W.-S. Lu, "Stabilization of two-dimensional systems,"
Proc. IEEE 23rd Conf. Decision and Control, pp. 878-880, Dec. 1984.

- W.-S. Lu and K. Kumar, "Linear compensator design for bounded-input
bounded-output stability of nonlinear systems," Proc. IEEE Amer. Control
Conf., pp. 331-332, San Francisco, June 1983.
- W.-S. Lu and K. Kumar, "On the design of regulators for unknown linear multivariable systems," Proc. IEEE Amer. Control Conf., pp. 927-928, San Francisco, June 1983.

- W.-S. Lu and Y. Z. Hu, "Design of experimental conditions for identifying stochastic systems in closed-loop," Proc. Sino-U.S. Conf. Control Sciences, Sept. 1981.