Publications

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(1) Dissertation

H.C.So, "Spontaneous and Explicit Estimation of Time Delays in the Absence/Presence of Multipath Propagation," Ph.D. dissertation, Department of Electronic Engineering, The Chinese University of Hong Kong, 1995

(2) Book and Book Chapter

  1. H.C.So, Digital Signal Processing: Foundations, Transforms and Filters, with Hands-on MATLAB Illustrations, Asian Customized Edition, McGraw Hill, 2010 (ISBN: 978-007-108889-3)
    2. Chapter Slides
  2. H.C.So, "Source Localization: Algorithms and Analysis," Handbook of Position Location: Theory, Practice and Advances, Chapter 2, S.A.Zekavat and M.Buehrer, Eds., Wiley-IEEE Press, 2011 (ISBN: 978-0-470-94342-7)(Line 15 of Page 56, "-" is missed before the expectation operator)

(3) International Refereed Journals

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  1. H.C.So and P.C.Ching, "Target localization in the presence of multipaths," Electronics Letters, vol.29, no.3, pp.293-294, Feb. 1993
  2. H.C.So, P.C.Ching and Y.T.Chan, "A new algorithm for explicit adaptation of time delay," IEEE Transactions on Signal Processing, vol.42, pp.1816-1820, July 1994
  3. P.C.Ching and H.C.So, "Two adaptive algorithms for multipath time delay estimation," IEEE Journal of Oceanic Engineering, vol.19, pp.458-463, July 1994
  4. H.C.So and P.C.Ching, "Convergence dynamics of an adaptive time delay estimator in multipath channels," IEEE Transactions on Aerospace and Electronic Systems, vol. 33, no.3, pp. 1071-1076, July 1997
  5. H.C.So, "Adaptive algorithm for sinusoidal interference cancellation," Electronics Letters, vol. 33, no.22, pp.1910-1912, Oct. 1997
  6. H.C.So "Fast algorithm for nonstationary delay estimation," Electronics Letters, vol.34, no.8, pp.722-723, April 1998
  7. H.C.So "Adaptive TDOA estimation in the presence of impulsive noise," Electronics Letters, vol.34, no.15, pp.1455-1456, July 1998
  8. H.C.So, "Adaptive cancellation of multiple interfering sinusoids," Electronics Letters, vol.34, no.24, pp.2301-2303, November 1998
  9. H.C.So and P.C.Ching, "Performance analysis of ETDGE - an efficient and unbiased TDOA estimator for source localization," IEE Proceedings - Radar, Sonar and Navigation, vol.145, no.6, pp.325-330, December 1998
  10. Y.T.Chan, H.C.So and P.C.Ching, "Approximate maximum-likelihood delay estimation via orthogonal wavelet transform," IEEE Transactions on Signal Processing, vol.47, no.4, pp.1193-1198, April 1999
  11. H.C.So, "Modified LMS algorithm for unbiased impulse response estimation in nonstationary noise," Electronics Letters, vol.35, no.10, pp.791-792, May 1999.
  12. H.C.So, Y.T.Chan, Q.Ma and P.C.Ching, "Comparison of various periodograms for sinusoid detection and frequency estimation," IEEE Transactions on Aerospace and Electronic Systems, vol.35, no.3, pp.945-952, July 1999
  13. P.C.Ching, H.C.So and S.Q.Wu, "On wavelet denoising and its application to time delay estimation," IEEE Transactions on Signal Processing, vol.47, no.10, pp.2879-2882, Oct. 1999
  14. H.C.So, "Comparison of DDE and ETDGE for time-varying delay estimation," Electronics Letters, vol.35, no.23, pp.1994-1995, Nov. 1999
  15. K.K.Tse, H.S.H.Chung, S.Y.R.Hui, and H.C.So, "Analysis and spectral characteristics of a spread-spectrum technique for conducted EMI suppression," IEEE Transactions on Power Electronics, vol.15, no.2 pp.399-410, March 2000
  16. H.C.So, "Adaptive algorithm for direct estimation of sinusoidal frequency," Electronics Letters, vol.36, no.8, pp.759-760, April 2000
  17. K.K.Tse, H.S.H.Chung, S.Y.R.Hui and H.C.So, "A comparative investigation on the use of random switching schemes for DC/DC converters," IEEE Transactions on Industrial Electronics, vol.47, no.2, pp.253-263, April 2000
  18. K.K.Tse, H.S.H.Chung, S.Y.R.Hui and H.C.So, "Spectral characteristics of randomly switched PWM DC/DC converters operating in discontinuous conduction mode," IEEE Transactions on Industrial Electronics, vol.47, no.4, pp.759-769, August 2000
  19. H.C.So and P.C.Ching, "A comparative study of five LMS-based adaptive algorithms for nonstationary delay estimation," IEE Proceedings - Radar, Sonar and Navigation, vol.148, no.1, pp.9-15, Feb. 2001
  20. H.C.So, "LMS algorithm for unbiased parameter estimation of noisy autoregressive signals," Electronics Letters, vol.37, no.8, pp.536-537, April 2001
  21. Y.T.Chan, Q.Yuan, H.C.So and R.Inkol, "Detection of stochastic signals in the frequency domain," IEEE Transactions on Aerospace and Electronic Systems, vol.37, no.3, pp.978-988, July 2001
  22. H.C.So, "On time delay estimation using an FIR filter," Signal Processing, vol.81, pp.1777-1782, August 2001
  23. H.C.So, "LMS-based algorithm for unbiased FIR filtering with noisy measurements," Electronics Letters, vol.37, no.23, pp.1418-1420, November 2001
  24. H.C.So, "Time delay estimation for sinusoidal signals," IEE Proceedings - Radar, Sonar and Navigation, vol.148, no.6, pp.318-324, Dec. 2001
  25. H.C.So, W.-K.Ma and Y.T.Chan, "Detection of random signals via spectrum matching," IEEE Transactions on Aerospace and Electronics System, vol.38, no.1, pp.301-307, January 2002
  26. K.K.Tse, H.S.H.Chung, S.Y.R.Hui and H.C.So, "A comparative study of carrier frequency modulation techniques for conducted EMI suppression in PWM converters," IEEE Transactions on Industrial Electronics, vol.49, no.3, pp.618-627, June 2002
  27. H.C.So, "Noisy input-output system approach for time delay estimation," Signal Processing, vol.82, no.10, pp.1471-1476, Oct. 2002
  28. K.W.Chan and H.C.So, "An exact analysis of Pisarenko's single-tone frequency estimation algorithm," Signal Processing, vol.83, no.3, pp.685-690, March 2003
  29. L.Zhang, H.C.So, Li Ping and G.liao, "Effective beamformer for coherent signal reception," Electronics Letters, vol.39, no.13, pp.949-951, June 2003
  30. H.C.So and Y.T.Chan, "Analysis of an LMS algorithm for unbiased impulse response estimation," IEEE Transactions on Signal Processing, vol.51, no.7, pp.2008-2013, July 2003
  31. S.M.Savaresi, S.Bittanti and H.C.So, "Closed-form unbiased frequency estimation of a noisy sinusoid using notch filters," IEEE Transactions on Automatic Control, vol.48, no.7, pp.1285-1292, July 2003
  32. H.C.So, "Analysis of an adaptive algorithm for unbiased multipath time delay estimation," IEEE Transactions on Aerospace and Electronic Systems, vol.39, no.3, pp.777-785, July 2003
  33. Y.Wu, G.liao and H.C.So, "A fast algorithm for 2-D direction-of-arrival estimation," Signal Processing, vol.83, no.8, pp.1827-1831, August 2003.
  34. H.C.So and E.M.K.Shiu, "Performance of TOA-AOA hybrid mobile location," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E86-A, no.8, pp.2136-2138, Aug. 2003
  35. H.C.So, "A comparative study of three recursive least squares algorithms for single-tone frequency tracking," Signal Processing, vol.83, no.9, pp.2059-2062, Sept. 2003
  36. W.Yu, H.C.So and P.C.Ching, "Joint time delay and frequency estimation via state-space realization," IEEE Signal Processing Letters, vol.10, no.11, pp.339-342, Nov. 2003
  37. H.C.So and Y.Wu, "Fast algorithm for high resolution frequency estimation of multiple real sinusoids," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E86-A, no.11, pp.2891-2893, Nov. 2003
  38. H.C.So and S.P.Hui, "Constrained location algorithm using TDOA measurements," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E86-A, no.12, pp.3291-3293, Dec. 2003
  39. Li Ping, L.Zhang and H.C.So, "On a hybrid beamforming/space-time coding scheme," IEEE Communications Letters, vol.8, no.1, pp.15-17, Jan. 2004
  40. K.W.Cheung, H.C.So, W.-K.Ma and Y.T.Chan, "Least squares algorithms for time-of-arrival based mobile location," IEEE Transactions on Signal Processing, vol.52, no.4, pp.1121-1128, April 2004
  41. H.C.So and K.W.Chan, "Reformulation of Pisarenko harmonic decomposition method for single-tone frequency estimation," IEEE Transactions on Signal Processing, vol.52, no.4, pp.1128-1135, April 2004
  42. H.C.So, "Sign-sign algorithm for unbiased IIR filtering in impulsive noise," Electronics Letters, vol.40, no.11, pp. 704 - 705, May 2004
  43. K.W.Chan and H.C.So, "Accurate frequency estimation for real harmonic sinusoids," IEEE Signal Processing Letters, vol.11, no.7, pp.609-612, July 2004
  44. L.Zhang, H.C.So, Li Ping and G.Liao, "Adaptive multiple-beamformers for reception of coherent signals with known directions in the presence of uncorrelated interferences," Signal Processing, vol.84, no.10, pp.1861-1873, October 2004
  45. H.C.So and P.C.Ching, "Adaptive algorithm for direct frequency estimation," IEE Proceedings - Radar, Sonar and Navigation, vol.151, no.6, pp.359-364. December 2004
  46. H.C.So and C.T.Leung, "A simple improvement to Tufts-Kumaresan method for multiple sinusoidal frequency estimation," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, no.1, pp.381-383, Jan. 2005
  47. K.W.Cheung and H.C.So, "A multidimensional scaling framework for mobile location using time-of-arrival measurements," IEEE Transactions on Signal Processing, vol.53, no.2, pp.460-470, Feb. 2005 Fig.5 Fig.6
  48. H.C.So, K.W.Chan, Y.T.Chan and K.C.Ho, "Linear prediction approach for efficient frequency estimation of multiple real sinusoids: algorithms and analyses," IEEE Transactions on Signal Processing, vol.53, no.7, pp.2290-2305, July 2005
  49. H.C.So, "Implementation of exact maximum likelihood phase estimators for a single real sinusoid in white Gaussian noise," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, no.7, pp.2019-2022, July 2005
  50. H.C.So and Y.T.Chan, "Short-time frequency estimation of a real sinusoid," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, no.9, pp.2455-2459, Sept. 2005
  51. H.C.So, "A comparative study of two discrete-time phase delay estimators," IEEE Transactions on Instrumentation and Measurement, vol.54, no.6, pp.2501-2504, December 2005
  52. H.C.So, "On linear least squares approach for phase estimation of real sinusoidal signals," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, no.12, pp.3654-3657, December 2005
  53. H.C.So, W.-K.Ma, A.Farina, F.Gini and W.Y.Tsui, "On four suboptimal quadratic detectors for random signals," IEICE Transactions on Communications, vol.E88-B, no.12, pp.4527-4533, December 2005
  54. Y.T.Chan, W.Y.Tsui, H.C.So and P.C.Ching, "Time-of-arrival based localization under NLOS conditions," IEEE Transactions on Vehicular Technology, vol.55, no.1, pp.17-24, January 2006
  55. H.C.So and K.W.Chan, "A generalized weighted linear predictor frequency estimation approach for a complex sinusoid," IEEE Transactions on Signal Processing, vol.54, no.4, pp.1304-1315, April 2006
  56. H.C.So and K.W.Chan, "Approximate maximum likelihood algorithms for two-dimensional frequency estimation of a complex sinusoid," IEEE Transactions on Signal Processing, vol.54, no.8, pp.3231-3237, August 2006
  57. K.W.Cheung, H.C.So, W.-K.Ma and Y.T.Chan, "A constrained least squares approach to mobile positioning: algorithms and optimality," EURASIP Journal on Advances in Signal Processing, vol.2006, Article ID 20858, pp.1-23, 2006
  58. H.C.So, Y.T.Chan, K.C.Ho, and K.W.Chan, "Unbiased equation-error based algorithms for efficient system identification using noisy measurements," Signal Processing, vol.87, pp.1014-1030, May 2007
  59. Y.Wu, H.C.So, C.Hou and J.Li, "Passive localization of near-field sources with a polarization sensitive array," IEEE Transactions on Antennas and Propagation, vol.55, no.8, pp.2402-2408, August 2007
  60. K.W.K.Lui and H.C.So, "Performance of modified covariance estimator for a single real tone," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E90-A, no.9, pp.2021-2023, September 2007
  61. H.C.So and K.W.Chan, "A generalized subspace approach for mobile positioning with time-of-arrival measurements," IEEE Transactions on Signal Processing, vol.55, no.10, pp.5103-5107, October 2007
  62. K.W.K.Lui and H.C.So, "Improved variant of Pisarenko harmonic decomposition for single sinusoidal frequency estimation," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E90-A, no.11, pp.2604-2607, November 2007
  63. J.Zheng, K.W.K.Lui and H.C.So, "Accurate three-step algorithm for joint source position and propagation speed estimation," Signal Processing, vol.87, pp.3096-3100, December 2007
  64. J.Zheng, K.W.K.Lui, W.-K.Ma and H.C.So, "Two simplified recursive Gauss-Newton algorithms for direct amplitude and phase tracking of a real sinusoid," IEEE Signal Processing Letters, vol.14, no.12, pp.984-987, December 2007
  65. M.Chakraborty and H.C.So and J.Zheng, "New adaptive algorithm for delay estimation of sinusoidal signals," IEEE Signal Processing Letters, vol.14, no.12, pp.972-975, December 2007
  66. C.W.Sung, K.W.K.Lui, K.W.Shum, and H.C.So, "Sum capacity of one-sided parallel Gaussian interference channels,"IEEE Transactions on Information Theory, vol.54, no.1, pp.468-472, January 2008
  67. T.Pitschel, H.C.So and J.Zheng, "New adaptive algorithm for unbiased and direct estimation of sinusoidal frequency," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E91-A, no.3, pp.872-874, March 2008
  68. K.W.K.Lui and H.C.So, "Single sinusoidal frequency estimation using second and fourth order linear prediction errors," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E91-A, no.3, pp.875-878, March 2008
  69. T.C.T.Chan, H.C.So and K.C.Ho "Generalized two-sided linear prediction approach for land mine detection," Signal Processing, vol.88 pp.1053-1060, April 2008
  70. Y.Wu and H.C.So, "Simple and accurate two-dimensional angle estimation for a single source with uniform circular array," IEEE Antennas and Wireless Propagation Letters, vol.7, pp.78-80, 2008
  71. H.C.So, Y.T.Chan and F.K.W.Chan, "Closed-form formulae for optimum time difference of arrival based localization," IEEE Transactions on Signal Processing, vol.56, no.6, pp.2614-2620, June 2008
  72. F.K.W.Chan, H.C.So, J.Zheng and K.W.K.Lui, "On best linear unbiased estimator approach for time-of-arrival based localization," IET - Signal Processing, vol.2, no.2, pp.156-162, June 2008
  73. K.W.K.Lui and H.C.So, "Two-stage autocorrelation approach for accurate single sinusoidal frequency estimation," Signal Processing, vol.88, no.7, pp.1852-1857, July 2008
  74. K.W.K.Lui and H.C.So, "Modified Pisarenko harmonic decomposition for single-tone frequency estimation," IEEE Transactions on Signal Processing, vol.56, no.7, pp.3351-3356, July 2008
  75. H.Chen, K.Sezaki, P.Deng and H.C.So, "An improved DV-hop localization algorithm with reduced node location error for wireless sensor networks," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E91-A, no.8, pp.2232-2236, August 2008
  76. K.W.K.Lui, H.C.So and G. Chen, "The π sequence as a complex network," Physica A: Statistical Mechanics and its Applications, vol.387, no.22, pp.5653-5661, September 2008
  77. Y.Wu, H.C.So and H.Q.Liu, "Subspace-based algorithm for parameter estimation of polynomial phase signals," IEEE Transactions on Signal Processing, vol.56, no.10, pp.4977-4983, October 2008
  78. Md.T.Amin, K.W.K.Lui and H.C.So, "Fast tracking of a real sinusoid with multiple forgetting factors," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E91-A, no.11, pp.3374-3379, November 2008
  79. W.Ng, T.C.T.Chan, H.C.So and K.C.Ho, "Particle filtering based approach for landmine detection using ground penetrating radar," IEEE Transactions on Geoscience and Remote Sensing, vol.46, no.11, pp.3739-3755, November 2008
  80. F.K.W.Chan, H.C.So and W.-K.Ma, "A novel subspace approach for node localization in wireless sensor networks using range measurements," IEEE Transactions on Signal Processing, vol.57, no.1, pp.260-269, January 2009
  81. K.W.K.Lui, W.-K.Ma, H.C.So and F.K.W.Chan, "Semi-definite programming algorithms for sensor network node localization with uncertainties in anchor positions and/or propagation speed," IEEE Transactions on Signal Processing, vol.57, no.2, pp.752-763, February 2009
  82. Y.Wu, H.Q.Liu and H.C.So, "Fast and accurate direction-of-arrival estimation for a single source," Progress In Electromagnetics Research C, vol.6, pp.13-20, 2009
  83. K.W.K.Lui, F.K.W.Chan and H.C.So, "Semi-definite programming approach for range-difference based source localization," IEEE Transactions on Signal Processing, vol.57, no.4, pp.1630-1633, April 2009
  84. K.W.K.Lui and H.C.So, "A study of two-dimensional sensor placement using time-difference-of-arrival measurements," Digital Signal Processing, vol.19, no.4, pp.650-659, July 2009
  85. T.K.C.Lo and H.C.So, "Theoretical study of impact localization limits in tangible acoustic interface applications," IET Electronics Letters, vol.45, no.16, pp.856-858, July 2009
  86. W.Ng, C.Ji, W.-K.Ma and H.C.So, "A study on particle filters for single-tone frequency tracking," IEEE Transactions on Aerospace and Electronic Systems, vol.45, no.3, pp.1111-1125, July 2009
  87. Y.Wu, H.C.So and Y.Tan, "Joint time-delay and frequency estimation using parallel factor analysis," Signal Processing, vol.89, pp.1667-1670, August 2009
  88. K.W.K.Lui, F.K.W.Chan and H.C.So, "Accurate time delay estimation based passive localization," Signal Processing, vol.89, pp.1835-1838, September 2009
  89. H.C.So, Md.T.Amin and F.K.W.Chan, "Accurate and simple estimator for lossy wave equation," IEEE Signal Processing Letters, vol.16, no.9, pp.798-801, September 2009
  90. L.Huang, T.Long, E.Mao and H.C.So, "MMSE-based MDL method for accurate source number estimation," IEEE Signal Processing Letters, vol.16, no.9, pp.790-793, September 2009
  91. Y.Wu, H.C.So and C.Hou, "Passive near-field source localization based on spatial-temporal structure," Progress In Electromagnetics Research C, vol.8, pp.27-41, 2009
  92. H.Q.Liu, H.C.So, K.W.K.Lui and F.K.W.Chan, "Sensor selection for target tracking in sensor networks," Progress In Electromagnetics Research, vol.95, pp.267-282, 2009
  93. F.K.W.Chan and H.C.So, "Accurate distributed range-based positioning algorithm for wireless sensor networks," IEEE Transactions on Signal Processing, vol.57, no.10, pp.4100-4105, October 2009
  94. L.Huang, T.Long, E.Mao and H.C.So, "MMSE-based MDL method for robust estimation of the number of sources without eigendecomposition," IEEE Transactions on Signal Processing, vol.57, no.10, pp.4135-4142, October 2009
  95. H.Q.Liu and H.C.So, "Target tracking with line-of-sight identification in sensor networks under unknown measurement noises," Progress In Electromagnetics Research, vol.95, pp.267-282, 2009
  96. F.K.W.Chan and H.C.So, "Efficient weighted multidimensional scaling for wireless sensor network localization," IEEE Transactions on Signal Processing, vol.57, no.11, pp.4548-4553, November 2009
  97. H.Q.Liu, F.K.W.Chan and H.C.So, "Non-line-of-sight mobile positioning using factor graphs," IEEE Transactions on Vehicular Technology, vol.58, no.9, pp.5279-5283, November 2009
  98. H.Q.Liu, H.C.So, F.K.W.Chan and K.W.K.Lui, "Distributed particle filter for target tracking in sensor networks," Progress In Electromagnetics Research C, , vol.11, pp.171-182, 2009
  99. R.Tan, G.Xing, J.Wang and H.C.So, "Exploiting reactive mobility for collaborative target detection in wireless sensor networks," IEEE Transactions on Mobile Computing vol.9, no.3, pp.317-332, March 2010
  100. Y.T.Chan, T.K.C.Lo, and H.C.So, "Passive range-difference estimation in a dispersive medium," IEEE Transactions on Signal Processing
    101. , vol.58, no.3, pp.1433-1439, March 2010
  101. F.K.W.Chan, H.C.So, S.-C.Chan, W.H.Lau and C.F.Chan "Accurate parameter estimation for wave equation," Progress In Electromagnetics Research, vol.102, pp.31-48, 2010
  102. K.W.K.Lui and H.C.So, "Semi-definite programming for real root finding," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E93-A, no.3, pp.636-639, March 2010
  103. K.W.K.Lui, H.C.So and W.-K.Ma,"Maximum a posteriori approach to time-of-arrival based localization in non-line-of-sight environment,"IEEE Transactions on Vehicular Technology, vol.59, no.3, pp.1517-1523, March 2010
  104. H.C.So, F.K.W.Chan, W.H.Lau and C.F.Chan, "An efficient approach for two-dimensional parameter estimation of a single-tone," IEEE Transactions on Signal Processing
    105. , vol.58, no.4, pp.1999-2009, April 2010
  105. F.K.W.Chan, H.C.So, Md.T.Amin, C.F.Chan and W.H.Lau, "Iterative quadratic maximum likelihood based estimator for a biased sinusoid," Signal Processing, vol.90, no.6, pp.2083-2086, June 2010
  106. K.W.K.Lui and H.C.So, "Semi-definite programming for approximate maximum likelihood sinusoidal parameter estimation," EURASIP Journal on Advances in Signal Processing, vol.2010, Article ID 178785, pp.1-19, 2010
  107. F.K.W.Chan, H.C.So, W.H.Lau and C.F.Chan, "Efficient approach for sinusoidal frequency estimation of gapped data," IEEE Signal Processing Letters, vol.17, no.6, pp.611-614, June 2010
  108. K.W.K.Lui and H.C.So, "Time delay estimator based on frequency estimation approach," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E93-A, no.6, pp.1248-1250, June 2010
  109. K.W.K.Lui and H.C.So, "Range-based source localization with a pure reflector in the presence of multipath propagation," Electronics Letters, vol.46, no.13, pp.957-958, June 2010
  110. W.Sun and H.C.So, "Maximum likelihood parameter estimator for a nonuniformly-sampled real sinusoid," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E93-A, no.10, pp.1813-1815, October 2010
  111. G.Xing, J.Wang, Z.Yuan, R.Tan, L.Sun, Q.Huang, X.Jia and H.C.So, "Mobile scheduling for spatiotemporal detection in wireless sensor networks," IEEE Transactions on Parallel and Distributed Systems, vol.21, no.12, pp.1851-1866, December 2010
  112. H.C.So, F.K.W.Chan and W.Sun, "Subspace approach for fast and accurate single-tone frequency estimation," IEEE Transactions on Signal Processing, vol.59, no.2, pp.827-831, February 2011
  113. H.C.So and K.W.K.Lui, "On optimum single-tone frequency estimation using nonuniform samples," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E94-A, no.2, pp.823-825, February 2011
  114. H.C.So and H.Q.Liu, "Improved single-tone frequency estimation by averaging and weighted linear prediction," ETRI Journal, vol.33, no.1, pp.27-31, February 2011
  115. F.K.W.Chan, H.C.So, W.H.Lau and C.F.Chan, "Structured total least squares approach for efficient frequency estimation," Signal Processing, vol.91, no.4, pp.1043-1047, April 2011
  116. W.Ng and H.C.So, "Multiple-model based particle filters for frequency tracking in alpha-stable noise," IEEE Transactions on Aerospace and Electronic Systems, vol.47, no.3, pp.2254-2261, July 2011
  117. H.C.So and L.Lin, "Linear least squares approach for accurate received signal strength based source localization," IEEE Transactions on Signal Processing, vol.59, no.8, pp.4035-4040, August 2011
  118. L.Huang, Y.Wu, H.C.So and Y.Zhang, "2-D frequency estimation of multiple damped sinusoids using subspace and projection separation approaches," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E94-A, no.9, pp.1842-1846, September 2011
  119. H.Chen, G.Wang, Z.Wang, H.C.So and H.V.Poor, "Non-line-of-sight node localization based on semi-definite programming in wireless sensor networks," IEEE Transactions on Wireless Communications, vol.11, no.1, pp.108-116, January 2012
  120. R.Chen, C.F.Chan and H.C.So, "Model-based speech enhancement with improved spectral envelope estimation via dynamics tracking," IEEE Transactions on Audio, Speech and Language Processing, vol.20, no.4, pp.1324-1336, May 2012
  121. Z.Zhou and H.C.So, "Linear prediction approach to oversampling parameter estimation for multiple complex sinusoids," Signal Processing, vol.92, no.6, pp.1458-1466, June 2012
  122. F.K.W.Chan, H.C.So and W.Sun, "Subspace approach for two-dimensional parameter estimation of multiple damped sinusoids," to appear in Signal Processing
  123. H.C.So and Z.Zhou, "Linear prediction approach for accurate dual-channel sine-wave parameter estimation," to appear in ETRI Journal
  124. L.Lin, M.Shen, H.C.So and C.Q.Chang, "Convergence analysis for initial condition estimation in coupled map lattice systems," to appear in IEEE Transactions on Signal Processing

(4) International Conference Proceedings

  1. P.C.Ching, K.C.Ho, H.C.So and Y.T.Chan, "An adaptive algorithm for multipath time delay estimation," Proceedings of the 3rd International Symposium on Signal Processing and its Applications, pp.421-424, August 1992, Australia
  2. H.C.So, P.C.Ching, K.C.Ho and Y.T.Chan, "A novel constrained algorithm for delay estimation in the presence of multipath transmissions," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, vol.1, pp.313-316, April 1993, Minneapolis, Minnesota, USA
  3. H.C.So and P.C.Ching, "A novel constrained time delay estimator," Proceedings of International Conference on Signal Processing, vol.1 pp.188-191, Oct. 1993, Beijing, China
  4. H.C.So and P.C.Ching, "Comparative performance of LMSTDE and ETDE for delay and Doppler estimation," Proceedings of the 28th Annual Asilomar Conference on Signals, Systems, and Computers, Oct. 1994, Pacific Grove, CA, USA
  5. H.C.So, P.C.Ching and Y.T.Chan, "An improvement to the explicit time delay estimator," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, vol.5, pp.3151-3154, May 1995, Detroit, Michigan, USA
  6. H.C.So and P.C.Ching, "A generalized equalization-based algorithm for multipath time delay estimation," Proceedings of the International Symposium on Circuits & Systems, vol.2, pp.556-559, May 1996, Atlanta, USA
  7. H.C.So and P.C.Ching, "Analysis of an adaptive IIR filter for multipath time delay estimation," Proceedings of VIII European Signal Processing Conference, vol.2, pp.1275-1278, Sept. 1996, Trieste, Italy
  8. S.Q.Wu, H.C.So and P.C.Ching, "Improvement of TDOA measurement using wavelet denoising with a novel thresholding technique," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, pp.539-542, April 20-24, 1997, Munich, Germany
  9. Y.T.Chan, Q.Ma, H.C.So and R.Inkol, "Evaluation of FFT methods for single tone detection and frequency estimation," Proceedings of the Canadian Conference on Electrical and Computer Engineering (CCECE'97), vol.1, pp. 211-214, May 25-28, 1997, Newfoundland, Canada
  10. Y.T.Chan, H.C.So, and P.C.Ching, "Approximate maximum likelihood delay estimation via orthogonal wavelet transform," Proceedings of the International Symposium on Circuits & Systems, vol.4, pp.2501-2504, June 9-12, 1997, Hong Kong
  11. H.C.So, Y.T.Chan, Q.Ma and P.C.Ching, "Comparison of various periodograms for single tone detection and frequency estimation," Proceedings of the International Symposium on Circuits & Systems, vol.4, pp.2529-2532, June 9-12, 1997, Hong Kong
  12. Y.T.Chan, H.C.So, Q.Yuan and R.Inkol, "Detection of stochastic signals in the frequency domain," Proc. of the 19th Biennial Symposium on Communications, pp.344-348, June 1998, Kingston, Ontario
  13. Y.T.Chan, H.C.So, Q.Yuan and R.Inkol, "Optimum detection of spread spectrum signals," Proc. of Wireless 98, pp.639-647, July 6-8, 1998, Calgary, Alberta
  14. H.C.So, "A new adaptive algorithm for eliminating sinusoidal interferences," Proc. of the 1998 Midwest Symposium on Circuits & Systems, August 1998, Notre Dame, Indiana
  15. H.C.So, W.-K.Ma and Y.T.Chan, "Detection of narrowband random signals via spectrum matching," Proc. of the 1998 Midwest Symposium on Circuits & Systems, August 1998, Notre Dame, Indiana
  16. K.K.Tse, H.S.H.Chung, S.Y.R.Hui, and H.C.So, "Spectral characteristics of random carrier-frequency switching in off-line switched-mode power supply," Proceedings of the 1999 Applied Power Electronics Conference and Exposition, vol.1, pp.139-145, March 1999, Dallas, USA
  17. K.K.Tse, H.S.H.Chung, S.Y.R.Hui and H.C.So, "A comparative study of using random switching schemes for DC/DC converters," Proceedings of the 1999 Applied Power Electronics Conference and Exposition, vol.1, pp.160-166, March 1999, Dallas, USA
  18. H.C.So, "Adaptive cancellation of multiple interfering sinusoids," Proceedings of the 1999 Midwest Symposium on Circuits and Systems, vol.2, pp.692-695, August 1999, Las Cruces, Nex Mexico
  19. H.C.So, "Unbiased FIR system identification in the presence of input and output interference," Proceedings of the 1999 Midwest Symposium on Circuits and Systems, vol.2, pp.696-700, August 1999, Las Cruces, Nex Mexico
  20. H.C.So, "Fractional lower-order moment based adaptive algorithms for time delay estimation in impulsive noise," Proceedings of the 1999 Midwest Symposium on Circuits and Systems, pp.985-988, August 1999, Las Cruces, Nex Mexico
  21. H.C.So and Y.T.Chan, "Two algorithms for frequency estimation of a real sinusoid from short data records," Proceedings of the 2000 IEEE International Symposium on Circuits and Systems, vol.3, pp.391-394, May 2000, Geneva, Switzerland
  22. H.C.So, "Adaptive time delay estimation for sinusoidal signal," Proceedings of the 2000 IEEE International Symposium on Circuits and Systems, vol.4, pp.501-504, May 2000, Geneva, Switzerland
  23. H.C.So, "Delay estimation using sinusoidal signals," Proceedings of the 2000 International Conference on Acoustics, Speech, and Signal Processing, vol.5, pp.3168-3171, June 2000, Istanbul, Turkey
  24. H.C.So, "Adaptive single-tone frequency estimation based on autoregressive model," Proceedings of the X European Signal Processing Conference, September 2000, vol.2, Tampere, Finland
  25. H.C.So and P.C.Ching, "Analysis of an adaptive single-tone frequency estimation algorithm," Proc. of IASTED International Conference on Signal and Image Processing 2000, November 2000, Las Vegas, Nevada, USA
  26. H.C.So, "Adaptive multipath equalization time delay estimation with bias-removal," Proceedings of the IEEE International Symposium on Circuits and Systems, vol.2, pp.105-108, May 2001, Sydney, Australia
  27. G.liao, H.C.So and P.C.Ching, "Joint time delay and frequency estimation of multiple sinusoids," Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, vol.5, pp.3121-3124, May 2001, Salt Lake City, Utah, USA
  28. K.W.Cheung, H.C.So and Y.T.Chan, "Mobile location using time-of-arrival and received signal strength measurements," Proc. Int. Conf. Wireless Communications, pp.558-565, July 2002, Calgary, Alberta, Canada
  29. H.C.So, "A closed form frequency estimator for a noisy sinusoid," (Invited Paper), Proceedings of 45th IEEE Midwest Symposium on Circuits and Systems, vol.2, pp.160-163, August 2002, Tulsa, Oklahoma, USA
  30. H.C.So, "Least mean square algorithm for unbiased impulse response estimation," (Invited Paper), Proceedings of 45th IEEE Midwest Symposium on Circuits and Systems, vol.2, pp.412-415, August 2002, Tulsa, Oklahoma, USA
  31. H.C.So, "Adaptive time delay estimation with noise suppression for sinusoidal signals," Proceedings of 45th IEEE Midwest Symposium on Circuits and Systems, vol.2, pp.164-167, August 2002, Tulsa, Oklahoma, USA
  32. H.C.So and S.K.Ip, "A novel frequency estimator and its comparative performances for short record lengths," Proceedings of the XI European Signal Processing Conference (EUSIPCO 2002), vol.3, pp.445-448, September 2002, Toulouse, France
  33. K.W.Cheung, H.C.So, W.-K.Ma and Y.T.Chan, "Received signal strength based mobile positioning via constrained weighted least squares," Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, vol.5, pp.137-140, April 2003, Hong Kong
  34. L.Y.Ngan, Y.Wu, H.C.So, P.C.Ching and S.W.Lee, "Joint time delay and pitch estmation for speaker localization," Proceedings of the IEEE International Symposium on Circuits and Systems, vol.3, pp.722-725, May 2003, Bangkok, Thailand
  35. K.W.Chan and H.C.So, "An accurate variance expression of Pisarenko's method for sinusoidal frequency estimation," Proc. 7th International Symposium on Signal Processing and its Applications, vol.2, pp.499-502, July 2003, Paris, France
  36. H.C.So and K.W.Chan, "New insights on Pisarenko's method for sinusoidal frequency estimation," Proc. 7th International Symposium on Signal Processing and its Applications, vol.2, pp.503-506, July 2003, Paris, France
  37. H.C.So, "Two discrete-time phase delay estimators," Proc. 7th International Symposium on Signal Processing and its Applications, vol.2, pp.547-550, July 2003, Paris, France
  38. S.M.Savaresi, S.Bittanti and H.C.So, "Closed form frequency estimation using second-order notch filter," Proc. 13th IFAC Symposium on System Identification, pp.1143-1148, August 2003, Rotterdam, The Netherlands
  39. K.W.Cheung, W.-K.Ma and H.C.So, "Accurate approximation algorithm for TOA-based maximum likelihood mobile location using semidefinite programming," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, vol.2, pp.145-148, May 2004, Montreal, Canada
  40. Y.T.Chan, W.Y.Tsui, H.C.So and P.C.Ching, "Time of arrival based localization under NLOS conditions," Proc. Int. Conf. Wireless Communications, pp.281-287, July 2004, Calgary, Alberta, Canada
  41. H.C.So, Y.T.Chan, K.C.Ho and K.W.Chan, "Unbiased equation-error approach for efficient IIR system identification," Proc. 2004 European Signal Processing Conference, pp.1907-1910, Sept. 2004, Vienna, Austria
  42. H.C.So and K.W.Chan, "A novel iterative approach for complex single-tone frequency estimation," Proc. 2006 International Conference on Acoustics, Speech, and Signal Processing, vol.3, pp.77-80, Toulouse, France, May 2006
  43. H.C.So and K.W.Chan, "A novel signal subspace approach for mobile positioning with time-of-arrival measurements", Proc. 2006 European Signal Processing Conference, Florence, Italy, September 2006
  44. K.W.Chan and H.C.So, "Accurate sequential weighted least squares algorithm for wireless sensor network localization", Proc. 2006 European Signal Processing Conference, Florence, Italy, September 2006
  45. H.C.So, C.T.Chan and K.W.Chan, "On detection of a real sinusoid with short data record", Proc. 2006 European Signal Processing Conference, Florence, Italy, September 2006
  46. F.K.W.Chan, H.C.So and W.-K.Ma, "A novel subspace approach for wireless sensor network positioning with range measurements," Proceedings of the 2007 International Conference on Acoustics, Speech, and Signal Processing, vol.II, pp.1037-1040, Hawaii, USA, May 2007
  47. T.C.T.Chan, H.C.So and K.C.Ho, "A study on two-sided linear prediction approach for land mine detection," Proc. 2007 European Signal Processing Conference, pp.2414-2418, Poznan, Poland, Sept. 2007
  48. K.W.K.Lui, J.Zheng and H.C.So, "Particle swarm optimization for time-difference-of-arrival based localization," Proc. 2007 European Signal Processing Conference, pp.414-417, Poznan, Poland, Sept. 2007
  49. K.W.K.Lui and H.C.So, "An unbiased Pisarenko harmonic decomposition estimator for single-tone frequency," Proc. 2007 European Signal Processing Conference, pp.956-959, Poznan, Poland, Sept. 2007
  50. Md.T.Amin, F.K.W.Chan and H.C.So, "Frequency estimation of damped noisy real sinusoid based on linear prediction," Proc. IASTED International Conference on Signal Processing, Pattern Recognition and Applications, Feb. 2008, Innsbruck, Austria
  51. G.Xing, J.Wang, K.Shen, Q.Huang, X.Jia and H.C.So, "Mobility-assisted spatiotemporal detection in wireless sensor networks," Proc. 28th International Conference on Distributed Computing Systems (ICDCS 2008), Jun. 2008, pp.103-110, Beijing, China
  52. H.Chen, K.Sezaki, P.Deng and H.C.So, "An improved DV-hop localization algorithm for wireless sensor networks," Proc. IEEE Conference on Industrial Electronics and Applications (ICIEA 2008), pp.1557-1561, June 2008, Singapore
  53. R.Tan, G.Xing, J.Wang and H.C.So, "Collaborative target detection in wireless sensor networks with reactive mobility," Proc. International Workshop on Quality of Service (IWQoS 2008), June 2008, pp.150-159, Enschede, The Netherlands
  54. W.Ng, T.C.T.Chan, H.C.So and K.C.Ho, "On particle filters for landmine detection using impulse ground penetrating radar," Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM 2008), pp.225-228, July 2008, Darmstadt, Germany
  55. H.Chen, P.Huang, M.H.T.Martins, H.C.So and K.Sezaki, "Novel centroid localization algorithm for three-dimensional wireless sensor networks," Proc. 4th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2008), pp.1-4, Oct. 2008, Dalian, China
  56. H.Chen, P.Huang, H.C.So, X.Luo and P.Deng, "Mobility-assisted cooperative localization scheme for wireless sensor networks, Proc. Military Communications Conference (MILCOM 2008), pp.1-7, November 2008, San Diego, CA
  57. H.Chen, P.Huang, H.C.So and K.Sezaki, "Mobility-assisted position estimation in wireless sensor networks," Proc. 14th IEEE International Conference on Parallel and Distributed Systems (ICPADS 2008), pp.607-614, December 2008, Melbourne, Victoria, Australia
  58. H.Chen, M.H.T.Martins, P.Huang, H.C.So and K.Sezaki, "Cooperative node localization for mobile sensor networks," Proc. 2008 International Conference On Embedded and Ubiquitous Computing (EUC 2008), vol.I, pp.302-308, December 2008, Shanghai, China
  59. K.W.K.Lui, W.-K.Ma, H.C.So and F.K.W.Chan,"Semi-definite programming approach to sensor network node localization with anchor position uncertainty," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2009), pp.2245-22486, April 2009, Taipei, Taiwan
  60. R.F.Chen, C.F.Chan, H.C.So, J.S.C.Lee, C.Y.Leung,"Speech enhancement in car noise environment based on an analysis-synthesis approach harmonic noise model," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2009), pp.4413-4416, April 2009, Taipei, Taiwan
  61. H.C.So, F.K.W.Chan, C.F.Chan and W.H.Lau, "Utilizing principal singular vectors for two-dimensional single frequency estimation," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2010), pp.3882-3885, March 2010, Dallas, Texas, USA
  62. R.F.Chen, C.F.Chan and H.C.So, "Noise suppression based on an analysis-synthesis approach," Proc. 2010 European Signal Processing Conference, pp.1539-1543, August 2010, Aalborg, Denmark
  63. W.Sun and H.C.So, "Improvement to ESPRIT-type frequency estimators via reducing data redundancy," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2011), pp.4192-4195, May 2011, Prague, Czech Republic
  64. L.Lin and H.C.So, "Best linear unbiased estimator algorithm for received signal strength based localization," Proc. 2010 European Signal Processing Conference, pp.1989-1993, August 2011, Barcelona, Spain
  65. L.Lin and H.C.So, "New constrained least squares approach for range-based positioning," Proc. 2010 European Signal Processing Conference, pp.1999-2003, August 2011, Barcelona, Spain
  66. Y.Wu, H.Wang, L.Huang and H.C.So, "Fast algorithm for three-dimensional single near-field source localization with uniform circular array," Proc. IEEE CIE International Conference on Radar, October 2011, Chengdu, China
  67. K.Liu, H.C.So and L.Huang, "A multi-dimensional model order selection criterion with improved identifiability, " Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), pp.2441-2444, March 2012, Kyoto, Japan
  68. W.Sun and H.C.So, "Efficient parameter estimation of multiple damped sinusoids by combining subspace and weighted least squares techniques," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), pp.3509-3512, March 2012, Kyoto, Japan
  69. W.Sun, H.C.So and Y.Chen, "Accurate estimation of frequency of a single sinusoid based on downsampling," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), pp.3533-3536, March 2012, Kyoto, Japan
  70. Z.Zhou, H.C.So and F.K.W.Chan, "Optimally weighted MUSIC algorithm for frequency estimation of real harmonic sinusoids," Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), pp.3537-3540, March 2012, Kyoto, Japan

(5) Other

  1. K.W.Cheung, H.C.So, W.-K. Ma and Y.T.Chan, "Least squares algorithms for time-of-arrival based mobile location," Proc. ACM Hong Kong Postgraduate Research Day, Jan. 2003, The Hong Kong Polytechnic University, Hong Kong.