联合DTOA一阶差分曲线和相关分析的参差信号分选方法
Signal Sorting Method for Jagger PRI Radar Based on First-Order Difference Curve of DTOA and Correlation Analysis
- 电子学报 2023年51卷第11期 页码：3271-3281
- 作者机构：
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
- 作者简介：
[ "谢敏 男，1998年生，江西吉安人.硕士研究生.主要研究方向为电子信号分析与处理.E-mail: xm980426@163.com" ]
[ "赵闯（通讯作者） 男，1978年生，河北辛集人.博士，副教授.主要研究方向为电子对抗、雷达信号处理、辐射源特征提取与识别、阵列信号处理等." ]
[ "胡德秀 男，1983年生，甘肃武威人.博士，副教授.主要研究方向为雷达信号处理、无源定位、电子对抗等.E-mail: paper_hdx@126.com" ]
[ "刘成城 男，1986年生，江苏盐城人.博士，副教授.主要研究方向为无人智能作战、无源定位、电子对抗等.中国电子学会会员编号：E190068968M.E-mail: luckylcc079@126.com" ]
- 基金信息：国家自然科学基金(62071490);河南省自然科学优秀青年基金(212300410095)
DOI：10.12263/DZXB.20220799
中图分类号： TN957.51;收稿：2022-07-08，
修回：2022-12-29，
纸质出版：2023-11-25
- 稿件说明：
移动端阅览
谢敏,赵闯,胡德秀等.联合DTOA一阶差分曲线和相关分析的参差信号分选方法[J].电子学报,2023,51(11):3271-3281.
XIE Min,ZHAO Chuang,HU De-xiu,et al.Signal Sorting Method for Jagger PRI Radar Based on First-Order Difference Curve of DTOA and Correlation Analysis[J].ACTA ELECTRONICA SINICA,2023,51(11):3271-3281.
谢敏,赵闯,胡德秀等.联合DTOA一阶差分曲线和相关分析的参差信号分选方法[J].电子学报,2023,51(11):3271-3281. DOI： 10.12263/DZXB.20220799.
XIE Min,ZHAO Chuang,HU De-xiu,et al.Signal Sorting Method for Jagger PRI Radar Based on First-Order Difference Curve of DTOA and Correlation Analysis[J].ACTA ELECTRONICA SINICA,2023,51(11):3271-3281. DOI： 10.12263/DZXB.20220799.
摘要
针对直方图方法分选脉间参差雷达信号能力不佳且无法解析其调制模式的问题，结合参差信号的交织特性，提出联合到达时间差值（Difference of Time Of Arrival，DTOA）的一阶差分曲线和相关分析的分选方法.该方法基于DTOA一阶差分曲线提取DTOA关注项，然后基于关注项的自相关和交叠率识别参差调制模式、基于关注项的互相关分析参差调制模式，最后结合参差分析结果进行序列检索.实验结果表明，所提方法所需计算量较少，可以有效分选参差信号并解析其完整的调制模式，对脉冲丢失表现出较强的适应性，对子周期分布的均匀程度和干扰脉冲有较好的稳健性.
Abstract
To sort the pulse stream with a jagged pulse repetition interval (PRI) and reconstruct its PRI pattern
combined with the characteristics of jagger PRI pattern
a method that combines the first-order difference curve of difference of time of arrival (DTOA) and correlation analysis was proposed. Firstly
concerned DTOA terms were extracted based on the first-order difference curve of DTOA. Then
stagger PRI pattern was identified based on the autocorrelation and overlap rate of the concerned term
and the complete pattern was analyzed based on the cross-correlation of the concerned term. Finally
sequence retrieval was performed based on the analysis result. Experimental results show that the proposed method requires less computational effort and has excellent performance on sorting jagger PRI signal and reconstructing its PRI pattern
showing strong adaptability to pulse missing and great robustness to spurious pulse and the uniformity of the distribution of sub-periods.
关键词
Keywords
references
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