基于脉冲重复间隔的信号分选方法研究  

Research on Signal Sorting Method Based on Pulse Repetition Interval

作　　者：王星斗 坤娅 WANG Xing-dou;KUN Ya(The 29th Research Institute of CETC,Chengdu 610000,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,四川成都610000

出　　处：《航空计算技术》2024年第6期55-59,共5页Aeronautical Computing Technique

基　　金：国家自然科学基金项目资助(52022075)。

摘　　要：脉冲重复间隔(PRI)是重要的雷达信号分选参数,已有许多关于PRI抖动和参差的分选方法研究。文章首先研究了到达时间(TOA)差值直方图法、传统PRI变换法、修正PRI变换法等PRI分选算法,并针对大量脉冲信号丢失的情况,仿真分析以上方法的PRI分选能力,结果表明PRI变换法的分选性能优于累积差值直方图法(CDIF)和序列差值直方图法(SDIF)。为抑制子谐波和提高修正PRI变换法的分选性能,提出一种以SDIF算法辅助修正PRI变换法的改进方法,仿真结果表明新改进法对大量脉冲信号丢失的分选效果较好。Pulse repetition interval(PRI)is an important radar signal sorting parameter,and there have been many studies on PRI jitter and misalignment sorting methods.This paper firstly studies PRI sorting methods such as the time of arrival(TOA)difference histogram method,the traditional PRI transform method,and the modified PRI transform method.In the case of a large number of pulse signal losses,this paper simulates and analyses the PRI sorting ability of the above methods,and the results show that the sorting performances of PRI transform methods are better than the cumulative difference(CDIF)histogram and the sequential difference(SDIF)histogram algorithm.To suppress subharmonics and improve the sorting performance of the modified PRI transform method,this paper presents an improved method using the sequence difference(SDIF)histogram method to assist the improved PRI transform method.The simulation results show that the new improved method has a good sorting effect on a large number of pulse signal losses.

关 键 词：脉冲重复间隔 序列差值直方图 PRI变换 信号分选 

分 类 号：O242[理学—计算数学]