Constant false alarm rate detection of MIMO radar with double threshold

The receiving antennas of Multiple Inputs Multiple Outputs (MIMO) radar need to transmit lots of data between each other because of the multiple channel property of MIMO radar. Besides, the technology of double threshold detection is quite mature and performs better than other detection methods. In order to reduce the data size, the double threshold detection method is applied to the MIMO radar. Base on the cell average CFAR detector, the double threshold detector for MIMO radar is proposed in this paper. Firstly, this detector’ structure is presented. Then the detection performance of double threshold detector is compared to the single threshold one. Finally, the detection performance of the double threshold detector in multiple targets condition is indicated. The simulation results show that the double threshold detector performances better than the single threshold detector, especially in multiple targets environments. Besides, it has the advantage of simplicity, low data transmission rate between receiving antennas and so on.