摘要
在复杂电磁环境中同时存在着固定、参差、抖动等重频类型的雷达信号,传统脉冲重复间隔(PRI)分选算法一般只能对其中1种或2种信号进行分选,为此设计了一种能够同时进行固定、参差、抖动信号分选的方法。该分选方法首先利用方正弦插值算法的抗抖动特性,对到达时间(TOA)序列进行PRI估值计算,再利用二维特征向量的高准确性对其检索方法进行了改进,使其能够同时分选固定、参差、抖动PRI调制信号。
In complex electromagnetic environments,radar signals with fixed,staggered and jittered pulse repetition interval(PRI)coexist.Traditional PRI sorting algorithms can generally only sort one or two types of signals.Therefore,a method capable of simultaneously sorting fixed,staggered and jittered signals is designed.This sorting method firstly uses the anti-jitter characteristics of the square sine wave interpolation algorithm to calculate the PRI estimation of the time of arrival(TOA)sequences,and then improves the retrieval method by using the high accuracy of the two-dimensional feature vector,which enables the method to simultaneously sort fixed,staggered and jittered PRI modulated signals.
作者
付驰
张汉伟
刘俊
FU Chi;ZHANG Hanwei;LIU Jun(The 8th Research Academy of CSSC,Yangzhou 225101,China)
出处
《舰船电子对抗》
2025年第4期46-50,90,共6页
Shipboard Electronic Countermeasure
关键词
信号分选
方正弦插值算法
抗抖动
signal sorting
square sine wave interpolation algorithm
anti-jitter
