Two kinds of robust CFAR detector based on MIMO radar system

Based on the system characteristics of MIMO radar, two kinds of MIMO radar CFAR detectors (termed OSCA-CFAR and LCIOSCA-CFAR) based on order statistic and mean level are presented. Firstly, formulas of false alarm probability and detection probability are given. Then detection performance under various clutter background is compared with classic CA-CFAR by simulating and analyzing. The simulation results show that performance of OSCA-CFAR and LCIOSCA-CFAR has a low-loss under uniform clutter and is improved greatly under multi-target interference compared with the CA-CFAR. So it is more robust than the CA-CFAR in practice. Finally, advantage and disadvantage of the two kinds of CFAR detector are indicated.