舰载干扰机信号分选的分类处理方法

Classifying Method of Signal Processing in Shipborne Electronic Countermcasure

本文提出一种信号处理方法，使雷达干扰机能适应快速反应的新体制雷达信号的需要。为简化分选软件，提高分选速度，采用重频相关函数器对AGC视频信号流中的固定／参差重频和抖动重频进行分离处理，并以不同的通道输出，以便CPU根据不同通道来的信号选用对应的软件进行针对性处理，从而达到简化分选流程，提高分选速度的目的。在AGC视频信号流分离后，为得到各种单一信号源，借用脉宽PW数码的识别，将分类后的信号流进一步稀释成单一脉冲序列后再作重频精分选。本文在阐述了系统工作原理的基础上，对实现分类处理的关键部件──相关函数器电路原理及与此相配合的软件处理过程作了比较详细的说明。

This article proposed a signal processing method to satisfy the needs of radar jammer for fitting the fast response type of radar signals. In order to optimize the software and improve the sorting speed, the pulse recurrancefrequency(PRF)coherent function device is adopted to process separately the stable PRF, stagger PRF and hoppingPRF from automatic gain control (AGC) video frequency signal flow. The output is then sent to differnt channelsfor central processing unit (CPU) to choose the appropriate software in processing these signal from each channel.After seperating the AGC video frequency signal flow, the classified signal flow are dilluted to get various singlepulse source series by means of identification of pulse-width(PW) code for fuither fine PRF sorting.