All Stories

  1. A matched-field processing approach to ranging surface vessels using a single hydrophone and measured replica fields

    Article • The Journal of the Acoustical Society of America, March 2021, Acoustical Society of America (ASA)

    Dr Kam W Lo

  2. A ballistic model-based method for ranging small arms fire using a single acoustic sensor node

    Article • The Journal of the Acoustical Society of America, April 2019, Acoustical Society of America (ASA)

    Dr Kam W Lo

  3. Curvilinear trajectory estimation of a supersonic bullet using ballistic shock wave arrivals at asynchronous acoustic sensor nodes

    Article • The Journal of the Acoustical Society of America, June 2017, Acoustical Society of America (ASA)

    Dr Kam W Lo

  4. Flight parameter estimation using instantaneous frequency and direction of arrival measurements from a single acoustic sensor node

    Article • The Journal of the Acoustical Society of America, March 2017, Acoustical Society of America (ASA)

    Dr Kam W Lo

  5. Comparison of supersonic bullet ballistic models for accurate localisation of small arms fire

    Article • IET Radar Sonar & Navigation, December 2016, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  6. Acoustic detection, localization, and tracking of tactical autonomous aerial and underwater vehicles

    Article • The Journal of the Acoustical Society of America, October 2016, Acoustical Society of America (ASA)

    Dr Kam W Lo

  7. Passive and active sonar signal processing methods for port infrastructure protection and harbor security

    Article • The Journal of the Acoustical Society of America, October 2016, Acoustical Society of America (ASA)

    Dr Kam W Lo

  8. Time delay estimation in the presence of source or receiver motion

    Article • The Journal of the Acoustical Society of America, October 2016, Acoustical Society of America (ASA)

    Dr Kam W Lo

  9. Flight parameter estimation using instantaneous frequency and time delay measurements from a three-element planar acoustic array

    Article • The Journal of the Acoustical Society of America, May 2016, Acoustical Society of America (ASA)

    Dr Kam W Lo

  10. Acoustic ranging of small arms fire using a single sensor node collocated with the target

    Article • The Journal of the Acoustical Society of America, June 2015, Acoustical Society of America (ASA)

    Dr Kam W Lo

  11. Flight Parameter Estimation Using Instantaneous Frequency Measurements From a Wide Aperture Hydrophone Array

    Article • IEEE Journal of Oceanic Engineering, October 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  12. Aircraft bearing estimation using underwater acoustic sensors

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  13. Defense applications of acoustic signal time delay estimation

    Article • The Journal of the Acoustical Society of America, November 2013, Acoustical Society of America (ASA)

    Dr Kam W Lo

  14. Flight parameter estimation using time delay and intersensor multipath delay measurements from a small aperture acoustic array

    Article • The Journal of the Acoustical Society of America, July 2013, Acoustical Society of America (ASA)

    Dr Kam W Lo

  15. Localization of small arms fire using acoustic measurements of muzzle blast and/or ballistic shock wave arrivals

    Article • The Journal of the Acoustical Society of America, November 2012, Acoustical Society of America (ASA)

    Dr Kam W Lo

  16. A model-based acoustical signal processing method for the passive ranging of sniper gunfire

    Article • The Journal of the Acoustical Society of America, April 2012, Acoustical Society of America (ASA)

    Dr Kam W Lo

  17. Simultaneous classification and ranging of direct fire weapons using an asynchronous acoustic sensor network

    Article • December 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  18. Surface craft motion parameter estimation using multipath delay measurements from hydrophones

    Article • December 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  19. Signal Processing in Physical and Engineering Acoustics

    Article • Acoustics Today, January 2011, Acoustical Society of America (ASA)

    Dr Kam W Lo

  20. Sensing the underwater acoustic environment with a single hydrophone onboard an undersea glider

    Article • May 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  21. Underwater acoustic sensor localization using a broadband sound source in uniform linear motion

    Article • May 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  22. Iterative Adaptive Approach for wide-band active sonar array processing

    Article • May 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  23. Sensing the underwater sound field produced by a moving airborne signal source

    Article • May 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  24. A ballistic model-based method for ranging direct fire weapons using the acoustic muzzle blast and shock wave

    Article • December 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  25. Acoustic signal processing methods for detecting intrusions and threats in the battlespace

    Article • The Journal of the Acoustical Society of America, May 2008, Acoustical Society of America (ASA)

    Dr Kam W Lo

  26. Broadband Source Angle Estimation Using a Sparse Uniform Linear Acoustic Array

    Article • February 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  27. Sensor Localization Using Acoustic Transient Signal Sources with Known Positions

    Article • January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  28. Acoustic Sensing of Direct and Indirect Weapon Fire

    Article • January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  29. Advances in High-Frequency Active Sonars for Countering Asymmetric Threats in Littoral Waters

    Article • September 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  30. Acoustic cueing for surveillance and security applications

    Article • May 2006, SPIE

    Dr Kam W Lo

  31. Acoustic methods for tactical surveillance

    Article • The Journal of the Acoustical Society of America, April 2005, Acoustical Society of America (ASA)

    Dr Kam W Lo

  32. Sensor Position Estimation and Source Ranging in a Shallow Water Environment

    Article • IEEE Journal of Oceanic Engineering, April 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  33. Automatic detection and tracking of a small surface watercraft in shallow water using a high-frequency active sonar

    Article • IEEE Transactions on Aerospace and Electronic Systems, October 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  34. Adaptive Array Processing for Wide-Band Active Sonars

    Article • IEEE Journal of Oceanic Engineering, July 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  35. Flight path estimation using multipath delay measurements from a wide aperture acoustic array

    Article • January 2003, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  36. Aircraft flight parameter estimation using acoustic multipath delays

    Article • IEEE Transactions on Aerospace and Electronic Systems, January 2003, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  37. Time frequency signal analysis of ground vehicle acoustic signatures

    Article • January 2002, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  38. High frequency sector scan sonar data preprocessing and beamforming

    Article • January 2002, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  39. Aircraft flight parameter estimation using acoustical Lloyd's mirror effect

    Article • IEEE Transactions on Aerospace and Electronic Systems, January 2002, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  40. Passive ranging errors due to multipath distortion of deterministic transient signals with application to the localization of small arms fire

    Article • The Journal of the Acoustical Society of America, January 2002, Acoustical Society of America (ASA)

    Dr Kam W Lo

  41. Locating far-field impulsive sound sources in air by triangulation

    Article • The Journal of the Acoustical Society of America, January 2002, Acoustical Society of America (ASA)

    Dr Kam W Lo

  42. Flight path estimation using frequency measurements from a wide aperture acoustic array

    Article • IEEE Transactions on Aerospace and Electronic Systems, April 2001, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  43. Turboprop and rotary-wing aircraft flight parameter estimation using both narrow-band and broadband passive acoustic signal-processing methods

    Article • The Journal of the Acoustical Society of America, October 2000, Acoustical Society of America (ASA)

    Dr Kam W Lo

  44. Broadband passive acoustic technique for target motion parameter estimation

    Article • IEEE Transactions on Aerospace and Electronic Systems, January 2000, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  45. Passive wideband cross correlation with differential Doppler compensation using the continuous wavelet transform

    Article • The Journal of the Acoustical Society of America, December 1999, Acoustical Society of America (ASA)

    Dr Kam W Lo

  46. Transient signal processing for marine animal localization

    Article • The Journal of the Acoustical Society of America, October 1999, Acoustical Society of America (ASA)

    Dr Kam W Lo

  47. Application of the continuous wavelet transform to the angular location of jet aircraft

    Article • The Journal of the Acoustical Society of America, February 1999, Acoustical Society of America (ASA)

    Dr Kam W Lo

  48. Passive estimation of aircraft motion parameters using destructive interference between direct and ground-reflected sound waves

    Article • January 1999, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  49. Automatic target detection using a ground-based passive acoustic sensor

    Article • January 1999, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  50. Transiting aircraft parameter estimation using underwater acoustic sensor data

    Article • IEEE Journal of Oceanic Engineering, January 1999, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  51. Theoretical analysis of the sequential lobing technique

    Article • IEEE Transactions on Aerospace and Electronic Systems, January 1999, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  52. Adaptivity of a real-symmetric array by DOA estimation and null steering

    Article • IEE Proceedings - Radar Sonar and Navigation, January 1997, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  53. Improving performance of real-symmetric adaptive array by signal blocking

    Article • IEEE Transactions on Aerospace and Electronic Systems, April 1995, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  54. Effect of dielectric coatings on parabolic reflector antenna performance

    Article • Microwave and Optical Technology Letters, January 1995, Wiley

    Dr Kam W Lo, Dr Trevor S. Bird

  55. Comments on a "A neural network approach to MVDR beamforming problem"

    Article • IEEE Transactions on Antennas and Propagation, September 1993, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  56. An improved multiple target angle tracking algorithm

    Article • IEEE Transactions on Aerospace and Electronic Systems, July 1992, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  57. Improving performance of adaptive array in presence of pointing errors using new zero-correction method

    Article • Electronics Letters, January 1991, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  58. Tracking multiple targets in 2-D angular space using sensor array

    Article • Electronics Letters, January 1991, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  59. Reducing the effect of pointing errors on the performance of an adaptive array

    Article • Electronics Letters, January 1990, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  60. Null steering in monopulse planar array using amplitude only control

    Article • Electronics Letters, January 1990, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  61. Directional constrained adaptive array using symmetric amplitude control

    Article • IEE Proceedings H Microwaves Antennas and Propagation, January 1989, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  62. Erratum: Improving performance of monopulse phased array in direction finding

    Article • IEE Proceedings H Microwaves Antennas and Propagation, January 1989, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  63. Additional comments on 'p-i-n diode attenuator with small phase shift' (and replies)

    Article • IEEE Transactions on Microwave Theory and Techniques, January 1989, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  64. Comments on "p-i-n diode attenuator with small phase shift" [with reply]

    Article • IEEE Transactions on Microwave Theory and Techniques, November 1988, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  65. Improving performance of monopulse phased array in direction finding

    Article • IEE Proceedings H Microwaves Antennas and Propagation, January 1988, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  66. Simple S-parameter model for receiving antenna array

    Article • Electronics Letters, January 1988, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  67. Minimisation of mutual coupling effect on doa estimation by using guard elements

    Article • Electronics Letters, January 1987, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  68. Minimisation of mutual coupling effect on null steering by using guard elements

    Article • Electronics Letters, January 1987, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  69. Minimisation of phase error in digitally controlled attenuator

    Article • Electronics Letters, January 1985, the Institution of Engineering and Technology (the IET)

    Dr Kam W Lo

  70. Extracting Tactical Information from Acoustic Signals

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  71. Tactical Unmanned Aerial Vehicle Localization Using Ground-Based Acoustic Sensors

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo

  72. An image processing approach for aircraft flight parameter estimation using the acoustical Lloyd's mirror effect

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kam W Lo