Statement on Research

My research has been focused on processing of ultra-wideband (UWB) signals; their propagation characteristic and related application in localization, through-wall radar imaging (TWRI) and communications.  I am attracted by the high-resolution capability of these wideband signals. I view this area as a rich and promising area of research which requires knowledge in signal processing, communications, and electromagnetic.  My work includes theory, simulation and processing of experimental data. Within this broad topic, the focus of my research is: 1) the directional nature of the UWB propagation, 2) through-wall and obstructed propagation, and their impact on communication and localization applications, 3) Angle of arrival estimation, and 4) UWB TWRI with compressed sensing (CS).

My research on TWRI has significant impact on the literature and developed standards. This is reflected through the large number of citations. Recently, I have established an experimental setup that can perform high resolution UWB positioning and imaging. I have applied CS techniques to reduce the processing/storage requirements. I have also contributed to the formulation of the CS problem through utilization of efficient mathematical modeling.

Through cooperation with other colleagues, I have demonstrated the ability to utilize my background and knowledge in Non-line-of-sight (NLOS) and multipath propagation in related problems. I have worked in 20 funded projects and published in reputable journals. I have successfully advised 3 PhD students and 9 M.Sc. students. I have acted as a visiting scholar at Villanova University 2013, Georgia Tech 2015, and KAUST 2018. I was honored to work with an authority in the field of TWRI, prof. Moeness Amin. I also worked with prof. Ghassan Alregib and prof. Douglas Williams from Georgia Tech, and Dr. Tareq AlNaffouri from KASUT.

My future research plans include completing my current research projects related to angle or arrival estimation and TWRI.  I envision my future in research to focus more on processing of UWB signals and their impact on receiver design, localization and imaging. I find myself ready to adapt to different application as determined by the research community.

My research contributions are published in about 35 refereed journal papers, 65 conference presentations, 2 patents, 2 book chapters, and many technical reports.