面向扩展目标检测的雷达收发联合优化方法OA

Aimed at the destructive impact of intermittent sampling repeater jamming(ISRJ)based on digital radio frequency memory(DRFM)on the detection performance of modern radar,a joint optimization method of radar transmitting waveform and receiving filter is proposed for extended target detection.First,a joint optimiza-tion model is established for wideband radar signal transceiving with ISRJ included.Then,for the resulting non-convex optimization problem,two solution strategies are proposed,namely the alternating direction method of multipliers(ADMM)and the coordinate descent(CD)algorithm,and the computational complexity of the two methods is further analyzed.Simulation results demonstrate that the proposed methods can effectively improve the output signal-to-interference-plus-noise ratio(SINR),thereby verifying the effectiveness and applicability of the joint optimization method for extended target detection in ISRJ environments,and that compared with other meth-ods,the ADMM-based method stands out in terms of the depth of interference suppression and the purity of the output waveform,while the CD-based method exhibits notable advantages in terms of convergence speed and computational cost.