基于时差多参的单脉冲信号实时配对分选  

Real-Time Deinterleaving Algorithm for Single Pulse Signal Based on TDOAs and Multi-parameter Information

作　　者：姜宏志 赵闯 胡德秀 赵拥军 赵勇胜 刘智鑫 JIANG Hong-zhi;ZHAO Chuang;HU De-xiu;ZHAO Yong-jun;ZHAO Yong-sheng;LIU Zhi-xin(PLA Strategic Support Force Information Engineering University,Zhengzhou,Henan 450001,China;Academy of System Engineering,Academic of Military Sciences,Beijing 100141,China)

机构地区：[1]中国人民解放军战略支援部队信息工程大学,河南郑州450001 [2]军事科学院系统工程研究院,北京100141 [3]中国人民解放军战略支援部队信息工程大学数据与目标工程学院,河南郑州450001

出　　处：《电子学报》2021年第3期566-572,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61703433,No.62071490)。

摘　　要：现有的分选算法均或多或少地存在对复杂调制信号难以分选、分选正确率低、对低重频信号分选效果差以及实时性差等问题.本文针对以上问题,提出了一种基于多站时差和多参数信息联合的单脉冲信号实时分选方法.该方法首先引入时差窗,对多站接收到的脉冲信号进行粗配对,分别得到多个可能与主站单脉冲正确配对的“脉冲对”序列;然后,利用脉内多参数信息对“脉冲对”进行精确匹配,获得真实配对的“脉冲对”,进而计算“脉冲对”对应的时差并得到“时差对”序列;最后,在误差容限内,依据时差的不变性,实现对单脉冲信号的实时分选.仿真结果表明,与现有算法相比,该算法能够对复杂脉间和脉内调制信号、超低重频信号甚至单脉冲信号进行有效分选,具有较高的分选正确率和较好的分选实时性.The existing deinterleaving algorithms have some problems such as difficulty in sorting complex modulation signals,high false alarm or false dismissal rate,poor performance on low repetition frequency signals,and poor real-time performance.In order to solve the above problems,this paper proposes a real-time single pulse signal sorting method based on multi-stations time difference of arrival(TDOA)and multi-parameters information.Firstly,the time difference window is introduced to make rough pairing of pulse signals received by multi-stations to obtain multiple"pulse pair"sequences which may be correctly paired.Then,the"pulse pair"is accurately matched by intra-pulse parameters to obtain the true"pulse pair".Then,the time difference corresponding to the"pulse pair"is calculated and the"time difference pair"sequences are obtained.Finally,within the error tolerance,according to the invariance of time difference,the single pulse signal is sorted in real time.The simulation results show that compared with the existing algorithms,the algorithm can effectively sort complex inter-pulse or intra-pulse modulated signals and low repetitive frequency signals,with extremely low false alarm,false dismissal rate and high correct sorting rate.At the same time,it is real-time.

关 键 词：电子侦察 复杂体制雷达 单脉冲 多参数信息 时差对 脉冲分选配对 

分 类 号：TN971[电子电信—信号与信息处理]