高频雷达射频干扰抑制研究

摘要

分析了高频雷达射频干扰抑制方案中对目标信号相干积累的影响，在此基础上提出了一种新型的天线方向图综合算法，并进一步将其应用到改进的干扰抑制新方案中。新方案兼顾了射频干扰的抑制和目标信号的相干积累。计算机仿真结果表明新方案较大地改善了高频雷达抑制射频干扰的性能。%The influence on the coherent integration of target sig nals in the radiofrequency interference (RFI) suppression scheme for high freque ncy(HF) radar is analyzed in this paper. On the basis of the ana-lysis a no vel an tenna radiation pattern integration algorithm is then proposed and further appl ied to a revised new interference suppression scheme. The new scheme takes into account both interference suppression and coherent integration of target signa ls. Simulation results show that the new scheme may greatly improve the performa nce of RFI suppression in HF radar.