Design of a Joint Radar-Communication System for Target Recognition

Joint radar-communication system (JRCS) that shares the same infrastructure and employs dual-function signal, has advantages of low cost, compact size and less power consumption. At present, most of previous investigations in JRCS are focused on detection, but system design and analysis for target recognition are scarce due to its complexity. In this work, we establish a JRCS aiming at both target recognition and communication using a single signal. Compared with detection oriented system that provides position of the targets, the proposed JRCS further identifies the categories of the targets. Frequency modulated continuous wave (FMCW) and orthogonal frequency division multiplexing (OFDM) signals are adopted as dual-function fundamental waveforms. Also, the optimal spectrum distribution of recognition and communication is theoretically analyzed. Simulation results show that the proposed JRCS performs well for both target recognition and communication.