DVB-T2 passive coherent location radar

Abstract

In this paper, an overview of the passive coherent location radar utilizing transmitter of signals of the second generation digital terrestrial television DVB-T2 standard as an illuminator of opportunity is presented. The radar antenna is designed as an 16-element phased antenna array. The signal reception and analog-to-digital conversion are performed by the 18-channel receiver unit. The main stages of signal processing are parallelized by the combined use of central processing units and graphics processing units. Adaptive LMS, NLMS and LSL filters are used for clutter cancellation. The target detection is accomplished with the aid of Constant False Alarm Rate algorithm. The results of detection of vehicles, helicopters and aircrafts are shown. The estimation of the radar potential characteristics are presented.