被动雷达导引头信号分选算法研究及仿真

被动雷达导引头所接收的信号是随机交迭的不匹配信号,如何在接收到的信号脉冲流中分离出目标雷达的脉冲序列,是被动雷达导引头信号处理技术的基础。针对被动雷达导引头信号分选技术介绍了几种常用算法的原理,讨论了各种算法的缺陷,并结合机载雷达的特点,对序列差直方图法（SDIF）进行了仿真和分析。经过改进后,SDIF算法更适合应用于高信号密度和高实时性要求的场合,具有一定的实用价值。

Signal deinterleaving algorithm of passive radar seeker

The signal received by the passive radar seeker is random,interleaved and mismatched.How to extract the target radar pulse sequence from the received signal is the foundation of signal processing for passive radar seeker.Aiming at the signal deinterleaving technology of passive radar seeker,the characters of several frequently-used algorithms are introduced.The defects of each algorithm are discussed.Combined with the speciality of airborne radar,the the sequential difference histogram(SDIF) algorithm is analyzed and simulated.The improved SDIF algorithm is more suitable for applications in the situation of high-density signal and critical real-time requirements.