Engineering Project Leadership
Served as the Principal Investigator and Project Director on 35 projects, from US Government Agencies, US Industry, and Canada, exceeding $12,000,000. Served as the Co-Principal Investigator on 19 projects, from US Government Agencies, US Industry, and Australia, exceeding $6,000,000.
Signal Processing for Indoor Radar Imaging
Headed and directed a 7-year, ten million dollar research and development project from both DARPA and Office of Naval Research, US, on Through-the-Wall Radar Imaging, where I: a) Introduced robust imaging techniques without knowledge of the wall characteristics and from variable standoff distances, b) Develop both coherent and noncoherent approaches using antenna arrays, c) Achieved desired imaging quality and resolution performance using minimum numbers of antennas at the transmit and receive, d) Successfully applied high resolution imaging to urban indoor targets, e) Developed a dual-frequency Doppler radar approach for target range estimation, f) Devised statistical bounds on linear and nonlinear motion parameter estimation and human gait signatures, g) Established state-of-the art 2-D data collection system with high resolution capabilities, h) Made data available to the large technical community for testing and benchmarking.
Signal Processing for Navigation
Headed and directed a 10-year funded project from the Air Force Research Lab, US, a three-year funded project from the Office of Naval Research, US, and a three-year funded project from the National Science Foundation, US, on interference mitigation in wideband communication signal platforms and Anti-Jam GPS receivers where I: a) Introduced novel techniques for interference suppression in GPS receivers using multi-antennas suitable for “cold start” in which no acquisition and knowledge of satellite positions are assumed, b) Solved FM interference suppression problems using various techniques, including time-varying notch filtering, subspace projections, spatio-temporal processing, spatial polarimetric processing, and signal synthesis from the time-frequency domain, c) Analyzed GPS receiver performance in the presence of non-Gaussian noise, d) Examined GPS receiver performance in multipath for outdoor and indoor operations, e) Applied interference cancelation techniques for next generation of GNSS receivers.
Signal Processing for Wireless Communications
Contributed extensively to advances in cooperative diversity, space-time coding, spatial processing for frequency diversity systems,and subband array processing for frequency selective fading.. In addition, I (a) Evaluated comprehensively the smart antenna technology for Comcast Wireless in 1995, and recommended the constant Modulus Algorithm (CMA) as a viable technology for the AMPS wireless standards, b) Developed in 1999-2001, for the Sarnoff Corporation, a CMA-DD hybrid technique for fast-varying channel equalization for application to High Definition TV and short-range wireless connectivity.
Signal Processing for Rotorcrafts
Headed and directed a four-year project from Boeing Rotorcraft Division on channel equalization and diversity techniques for rotorcrafts where I a) Used MIMO for enhanced rotorcraft communication links with cyclic channel characteristics caused by the aircraft propeller rotations, b) Combated rotor signal inter-modulations using transmit diversity techniques and space-time coding, c) Applied blind source separation techniques to airborne antenna arrays, modeling propeller scatterers as spatially distributed sources.
Signal Processing for Satellite Communications
Developed, for General Electric though a two-year research program 1989-1990, a combined high resolution adaptive nulling and localization for commercial and non-commercial satellites, where subspace methods were applied to, then existing, analog adaptive loops, for multichannel multi-antenna satellite systems.
Established, through external funding, four State-of-the-Art Research Labs