单脉冲二次雷达应答分析的抗干扰处理

本文提出了一种新的二次雷达应答分析的抗干扰处理技术,通过准确提取应答框架位置和参考信号特征,利用应答脉冲与参考信号的信号特征一致性进行有效信号判定.采用该方法,能在高密度应答中有效地筛选真实应答,去除幻影和FRUIT干扰.通过理论分析和产品使用证明,即使在高密度询问下和复杂的FRUIT干扰,应答信号存在非常严重的重叠情况时,本文的抗干扰处理技术都具有极高的真实应答的检测概率和极低的虚警概率.

Anti-jamming process for reply extraction of MSSR

We proposed a novel technology about MSSR reply decoding, which can abstract reply brackets position and reference signal characters, and get the efficient signal by utilizing the character consistency of reply pulses and reference signal. Therefore, we can wipe off the phantom and FRUIT jamming and get the real reply in high-density replies. The results of theoretical analysis and practical system-test have shown that this method can get very high detection probability and very low falsehood probability in the environment of high-density request and complex FRUIT jamming, where the reply signal is badly overlapped.