Proceedings of IRSI-17,15-17 Dec 2017 Bangalore, India Through Wall Imaging Radar Based on Micro-Doppler Features Aditya, T. Nikhil, S. Dipanjan Gope. Mahadevan, V.

This paper discusses and aims to construct an inexpensive through wall imaging radar system. The system involves a main processor board, transmit and receive system, a dedicated software and a phased array design to identify living targets based on micro-Doppler features through occlusions. The intention of making the device affordable resulted in a new hybrid antenna which incorporates the ease of construction of the wave-guide antenna and the gain of conical horn antenna. The paper also studies the efficacy of the broad-band Vivaldi antenna and its variation with different parameters encountered during the designing phase. The dedicated software consists of a Java based GUI with JNI calls to C member functions to carry out processor intensive computations. The receive end software is influenced by GNU Radio project