伪随机码连续波雷达的近距离目标干扰抑制

Interference Suppression of Close-in Targets in the PRC-CW Radar

分析了伪随机码连续波（ＰＲＣ－ＣＷ）雷达在地面多目标环境中存在近距离目标干扰的原因。根据相关原理，提出了抑制近距离目标干扰的相关滤波法。它能使近距离目标在检测的同时得到抑制。计算机模拟结果表明，相关滤波法可有效地抑制近距离目标的干扰，而不会影响对远距离目标的检测。

The reason for the interference of close-in targets for pseudo-random code CW(PRC-CW) radar that occur in the environment of ground multipletargets is analyzed in this pa-per. According to the correlation principle , the correlation-filter method for suppresing the inter-ference of close-in targets is presented. The interference of close-in targets in received signal is suppressed while it is detected. The result of computer simulation shows that the interference of close-in targets can be suppressed effectively and the detection of distant targets are not influenced using the correlation-filter method。