2007

• Y. Chen, M. D. Adams, and W.-S. Lu, "Design of optimal quincunx filter banks for image coding via sequential quadratic programming," to be presented at ICASSP 2007, 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

2006

• 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

2005

• 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

2004

• 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

2003

• 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

2002

• 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

2001

• 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

2000

• 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

1999

• 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

1998

• 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

1997

• 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

1996

• 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

1995

• 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

1994

• 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.

1993

• 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.

1992

• 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.

1991

• 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.

1990

• 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.

1989

• 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.

1988

• 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

1987

• 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.

1986

• 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.

1985

• 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.

1984

• 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.

1983

• 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.

1981

• 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.