Description: Description: Description: Description: Description: Department of Electronic Engineering, CityU HK

LEUNG, Shu-Hung
B.Sc. CUHK, M.Sc., Ph.D. UC Irvine, MIEEE

Associate Professor

Room: G6509 Tel: (852) 34427784 Fax: (852) 34420562 Email: eeeugshl@cityu.edu.hk

Dr. Leung received his first class honors B.Sc. degree in electronics from the Chinese University of Hong Kong in 1978, and his M.Sc. and Ph.D. degrees, both in electrical engineering, from the University of California at Irvine in 1979 and 1982, respectively.

From 1982 to 1987, he was an Assistant Professor with the University of Colorado at Boulder. Since 1987, he has been with the Department of Electronic Engineering in City University of Hong Kong, where he is currently an Associate Professor.

His current research interest is in digital communications, speech signal processing, image processing, and adaptive signal processing. He has received more than twenty research grants from CERG, Croucher Foundation and City University strategic grants and published over 200 technical papers in journals and international conference proceedings.

He is now an associate editor of IEEE Transactions on Vehicular Technology. He served as Chairmen of the signal processing chapter of the IEEE Hong Kong Section in 2003-04 and as organizing committee member for a number of international conferences. He is listed in the Marquis Who's Who in Science and Engineering and Marquis Who's Who in the World.

RESEARCH INTERESTS

Digital Communications, Adaptive Signal Processing, Speech Signal Processing, Image Processing.

SELECTED RECENT PUBLICATIONS

  1. X. B. Yu, S. H. Leung, X. Chen, “Performance Analysis of Space-time Block Coded MIMO Systems with Imperfect Channel Information over Rician Fading Channels,” IEEE Transactions on Vehicular Technology, vol. 60, no. 9, pp. 4450- 4461, Nov. 2011.
  2. X. B. Yu, S. H. Leung, and W. K. Wong, “Performance analysis of variable-power adaptive modulation with antenna selection over Rayleigh fading channels,” IET Commun., vol. 5, no. 10, pp.1394-1404, July 2011.
  3. Q. Kuang, S. H. Leung, and X. B. Yu, “Novel Power Adaptation Strategy for Space-time Coded Multiantenna Systems with Imperfect Channel State,” IEEE Trans on Veh. Tech., vol.60, no.3, pp1227-1233, March 2011.
  4. Y. T. Wu, S. H. Leung, W. K. Wong, and Y. S. Zhu, “A Constrained Minimum Mean Square Error Code Tracking Loop for Synchronous DS-CDMA Systems,” AEU-International Journal of Electronics and Communications, vol.64, no.6, pp. 558-569, June 2010.
  5. Yu, Xiangbin, Leung Shu-hung, Mow, Wai-ho, Wong, Wai-ki, “Performance of variable-power adaptive modulation with space-time coding and imperfect CSI in MIMO systems,” IEEE Transactions on Vehicular Technology, vol. 58, no.4, pp.2115-2120, May 2009.
  6. Wong, W. K., Wu, Y. T., Leung, S. H., and Zhu, Y. S., “A modified de-correlated delay lock loop for synchronous DS-CDMA systems,” IEEE Transactions on Vehicular Technology, vol. 57, no.5, pp.3293-3299, September 2008.
  7. Zheng, Shao Yong, Yeung, Sai Ho, Chan, Wing Shing, Man, Kim Fung, Leung, Shu Hung, Xue, Quan, “Dual-band rectangular patch hybrid coupler,” IEEE Transactions On Microwave Theory And Techniques, vol. 56, pp. 1721-1728, July 2008.
  8. Zheng, S. Y., Yeung, S. H., Chan, W. S., Man, K. F., Leung, S. H., “Improved broadband dumb-bell-shaped phase shifter using multi-section stubs,” Electronics Letters, vol. 44, pp. 478-479, March 2008.
  9. S. L. Wang, W. H. Lau, A. W. C. Liew, and S. H. Leung, “Robust Lip Region Segmentation for Lip Images with Complex Background,” Pattern Recognition, vol.40, issue 12, pp. 3481-3491, Dec. 2007.
  10. S. Zheng, W. S. Chan, S. H. Leung and Q. Xue, “Broadband Butler Matrix with Flat Coupling,” Electronics Letters, vol.43, pp. 576-577, 10 May 2007.
  11. G. X. Ning, S. H. Leung, K. K. Chu, and G. Wei, “A Dynamic Parameter Compensation Method for Noisy Speech Recognition,” Speech Communication, vol.48, pp.1283-1293, 2006.
  12. S. H. Leung and C. F. So, "Gradient-Based Variable Forgetting Factor RLS Algorithm in Time-Varying Environments," IEEE Trans. Signal Processing, vol. 53, pp.3141-3150, Aug.2005.
  13.  R. F. Song and S. H. Leung, "A Novel OFDM Receiver with Second Order Polynomial Nyquist Window Function," IEEE Commun. Letters vol.9, pp. 391-393 May 2005.
  14.  R. F. Song and S. H. Leung, "A unified analysis of quaternary DS-CDMA systems with arbitrary chip waveforms and its applications," Wireless Personal Communications vol.31, pp. 111-129, Oct. 2004.
  15. S. C. Ng, C. C. Cheung and S. H. Leung, "Magnified Gradient Function with Deterministic Weight Modification in Adaptive Learning,” IEEE Trans. Neural Networks, vol.15, pp. 1411-1423, Nov. 2004.
  16. S. L. Wang, W. H. Lau and S. H. Leung, "Automatic Lip Contour Extraction from Color Images,” Pattern Recognition, vol. 37, pp. 2375-2387, 2004.
  17. S. H. Leung, S. L. Wang, and W. H. Lau, "Lip Image Segmentation using Fuzzy Clustering incorporating an Elliptic Shape Function,"  IEEE Transactions on Image Processing, , vol.13, no.1, pp. 51-62, January 2004.
  18. R. Song and S. H. Leung, "Analysis and Optimization of DS-CDMA Systems With Time-Limited Partial Response Chip Waveforms," IEEE Transactions on Broadcasting, vol.49, no.2, pp.202-210, June 2003.
  19. C. F. So, S. C. Ng, and S. H. Leung, "Gradient based variable forgetting factor RLS algorithm," Signal Processing, vol.83, no.6 pp.1163-1175, June 2003.
  20. A. W. C. Liew, S. H. Leung, and W. H. Lau, "Segmentation of Color Lip Images by Spatial Fuzzy Clustering," IEEE Transactions on Fuzzy Systems, vol.11, no.4, pp.542-549, August 2003.
  21. S. M. Ju and S. H. Leung, "Clipping on COFDM with Phase on Demand," IEEE Communications Letters, vol.7, pp.49-51, Feb 2003.
  22. S. H. Leung, S. M. Ju and G. G. Bi, "Algorithm for Repeated Clipping and Filtering in Peak-to-average Power Reduction for OFDM,"  Electronics Letters, vol.38, no.25 pp. 1726 –1727, Dec. 2002.
  23.  A. W. C. Liew, S. H. Leung and W. H. Lau, "Lip Contour Extraction from Color Images Using a Deformable Model,"  Pattern Recognition vol.35, pp.2949-2962, Dec. 2002.
  24. C. F. So and S. H. Leung, "Variable Forgetting Factor RLS algorithm based on Dynamic Equation of Gradient of Mean Square Error," IEE Electronics Letters, vol.37, no.3, pp.202-203, Feb. 2001.
  25. J. F. Weng and S. H. Leung, "On the Performance of DPSK in Rician Fading Channels with Class A Noise," IEEE Transactions on Vehicular Technology, vol.VT-49, no.5, pp1934-1949, Sept. 2000.
  26. S. H. Leung, Y. Xiong and W. H. Lau, "Modified Kay's Method with Improved Frequency Estimation," IEE Electronics Letters, vol.36, no.10, pp.918-920, May 2000.
  27. A. W. C. Liew, S. H. Leung and W. H. Lau,"Fuzzy Image Clustering Incorporating Spatial Continuity," IEE Proceedings-Vision, Image, Signal Processing, vol.147, no.2, pp.185-192, April 2000.
  28. A. W. C. Liew, S. H. Leung and W. H. Lau,"Region Based Approach to Robust Lip Contour Extraction," IEE Electronics Leters, vol.36, no.15, pp.1272-1274, July 2000.
  29. J. W. Weng and S. H. Leung, "Nonlinear RLS Algorithm for Amplitude Estimation in Class A Noise," IEE Proceedings-Communications, vol.147, no.2, pp.81-86, April 2000.
  30. S. H. Leung, Y. Xiong, W. H. Lau, and C. F. So, "Whitening Prefiltered TLS Linear Predictor for Frequency Estimation," IEE Electronics Letters vol.35, no.15, pp.1232-1233, July 1999.
  31. J. F. Weng and S. H. Leung, "Equal Gain Performance of MDPSK in Nakagami Fading and Correlated Gaussian Noise," IEEE Transactions on Communications, vol.47, no.11, Nov. 1999.
  32. K. K. Wong, S. H. Leung, and W. H. Lau,"Modified Time-Domain LS FIR Filter Design for Musical Notes," IEE Electronics Letters, vol.35, no.4, pp.276-277, Feb. 1999.
  33. S. C. Ng, S. H. Leung, and A. Luk, "Fast Convergent Generalized Back-Propagation Algorithm with Constant Learning Rate," Neural Processing Letters, vol.9, no.1, pp.13-23, Feb. 1999.
  34. J. F. Weng and S. H. Leung, "Analysis of DPSK Nonlinear Combiner over Fading Channels with Impulse Noise,"  IEE Proceedings-Communications, vol.145, no.6, pp.406-413, Dec. 1998.
  35. H. C. Ng, S. H. Leung, and C. W. Tsang, "Scalar Quantisation of LSF Parameters Using Vector Measure," IEE Electronics Letters, vol.34, no.10, pp.961-963, May 1998.
  36. C. T. Guan, S. H. Leung, and W. H. Lau, "Multi-model Approach for Noisy Speech Recognition," IEE Electronics Letters, vol.34, no.1, pp.30-32, Jan. 1998.
  37. J. F. Weng, S. H. Leung, W. H. Lau, and G. G. Bi, "Two-stage Nonlinear Detector in DS/SSMA Communications with Impulse Noise," IEE Proceedings-Communications, vol.144, no.6, pp.387-394, Dec. 1997.
  38. J. F. Weng and S. H. Leung, "Analysis of M-ary Square Law Combiner in Nakagami Fading," IEE Electronics Letters, vol.33, no.20, pp.1671-1673, Sept. 1997.
  39. J. F. Weng and S. H. Leung, "Bit Error Probability of MDPSK in Nakagami Fading Channels," IEE Electronics Letters, vol.33, no.20, pp1675-1676, Sept. 1997.
  40. J. F. Weng and S. H. Leung, "Performance of DPSK Mobile Receiver in Impulse Noise," IEE Electronics Letters, vol.33, no.9, pp.745-747, April 1997.
  41. J. F. Weng and S. H. Leung, "Analysis of DPSK with Equal Gain Combining in Nakagami Fading Channels," IEE Electronics Letters, vol.33, no.8, pp654-656, April 1997.
  42. J. F. Weng and S. H. Leung, "Analysis of Nonlinear Combiner in Rician Fading Channels with Impulse Noise, IEE Electronics Letters, vol.33, no.5, pp359-360, Feb. 1997.
  43. S. H. Leung, W. H. Lau, and T. H. Lee, "Improved Frequency Estimation Using Total Least Squares Linear Prediction with Frequency Weighting," IEE Electronics Letters, vol.33, no.5, pp.366-367, Feb. 1997.
  44. S. H. Leung and C. C. Chu, "Adaptive LMS Filter with Lattice Prefilter," IEE Electronics Letters, vol.33, no.1, pp.34-35, Jan. 1997.
  45. S. C. Ng, C. Y. Chung, S H. Leung, and A. Luk, "Genetic search approach in adaptive IIR filtering,"  IEEE Signal Processing Magazine, vol.13, no.6, pp.38-46, Nov. 1996.

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