时域多脉冲相关与聚类分析的抗同频干扰技术

doi:10.12305/j.issn.1001-506X.2026.04.09

Abstract

Abstract:

In formation scenarios, the same-frequency interference generated by internal radars can lead to a decline in the detection and tracking performance of targets. Therefore, it is necessary to suppress co-frequency interference. A time-domain multi-pulse correlation and cluster analysis anti-co-frequency interference technology is proposed. After the time-domain multi-pulse correlation method determines it as a target, cluster analysis is performed on the target data to restore the interference data to the target signal, which can simultaneously meet the requirements of eliminating false targets and detecting true targets. Simulation experiments show that the proposed algorithm is not affected by the interference environment and has universality. Compared with traditional methods, the proposed algorithm can improve the detection performance of targets. In the case of multiple formation radars operating simultaneously, the proposed algorithm still maintains a certain stability.

Key words: signal processing, object detection, clustering, same-frequency interference, time-domain multi-pulse correlation method

CLC Number:

TN 973

Shuo LIU, Yu ZHOU, Zhehao ZHANG, Song SHANG, Song CHENG. Anti-same-frequency interference technology based on time-domain multi-pulse correlation and clustering analysis[J]. Systems Engineering and Electronics, 2026, 48(4): 1186-1194.

Figures/Tables 18

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References 30

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参数	参数值
虚警概率	10⁻⁷
保护单元	50
参考单元	10
脉冲数	8
相关脉冲数目	6

参数	参数值
信噪比/dB	[−20:1:0]
带宽/MHz	1
时宽/μs	50
初始时延	2000
PRT/ms	[2:0.05:2.35]

信号类别	信噪比/dB	带宽/MHz	时宽/μs	初始时延点数	PRT/ms
目标信号	[−20:1:0]	1	50	2000	[2:0.05:2.35]
干扰信号	[−20:1:20]	1	100	2000	2

信号类别	信噪比/dB	带宽/MHz	时宽/μs	初始时延点数	PRT/ms
目标信号	[−20:1:0]	1	50	2000	[2:0.05:2.35]
干扰信号1	20	1	100	2000	2
干扰信号2	20	1	75	1900	2.05
干扰信号3	20	0.75	50	1700	2.1
干扰信号4	20	0.5	50	1400	2.15

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Anti-same-frequency interference technology based on time-domain multi-pulse correlation and clustering analysis

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