基于余弦幅度加权的低旁瓣多相位分段调制干扰方法

doi:10.12305/j.issn.1001-506X.2021.11.18

系统工程与电子技术 ›› 2021, Vol. 43 ›› Issue (11): 3185-3193.doi: 10.12305/j.issn.1001-506X.2021.11.18

基于余弦幅度加权的低旁瓣多相位分段调制干扰方法

王宏艳^1,*, 降佳伟², 蒲娟³, 吴彦鸿⁴, 冉达¹

1. 航天工程大学航天信息学院, 北京 101416
2. 航天工程大学电子与光学工程系, 北京 101416
3. 西昌卫星发射中心, 四川西昌 615099
4. 北京宏锐星通科技有限公司, 北京 100085

收稿日期:2020-07-29 出版日期:2021-11-01 发布日期:2021-11-12
通讯作者: 王宏艳
作者简介:王宏艳(1978—), 女, 副教授, 博士, 主要研究方向为雷达信号处理|降佳伟(1991—), 男, 博士研究生, 主要研究方向为雷达信号处理|蒲娟(1983—), 女, 硕士研究生, 主要研究方向为航天发射科技情报资料管理|吴彦鸿(1971—), 男, 教授, 博士, 主要研究方向为雷达信号处理|冉达(1988—), 男, 讲师, 博士, 主要研究方向为雷达信号处理
基金资助:
复杂电子系统仿真实验室基金(DXZF-JC-ZZ-2017-007)

Multiple phases sectionalized modulation jamming method with low sidelobe based on cosine amplitude weighting

Hongyan WANG^1,*, Jiawei JIANG², Juan PU³, Yanhong WU⁴, Da RAN¹

1. School of Space Information, Space Engineering University, Beijing 101416, China
2. Department of Electronic and Optical Engineering, Space Engineering University, Beijing 101416, China
3. Xichang Satellite Launch Center, Xichang 615099, China
4. Hongruixingtong Technology Limited Company, Beijing 100085, China

Received:2020-07-29 Online:2021-11-01 Published:2021-11-12
Contact: Hongyan WANG

摘要/Abstract

摘要：

多相位分段调制(multiple phases sectionalized modulation, MPSM)干扰可以对线性调频脉冲压缩雷达产生局部压制式干扰效果, 能够对目标进行有效保护。然而MPSM干扰存在较强的旁瓣, 当对目标进行保护时容易被发现, 不利于干扰的隐蔽实施。针对这个问题, 提出一种基于余弦幅度加权的低旁瓣MPSM干扰方法。该方法借鉴时域加窗抑制旁瓣的思想, 首先将接收到的雷达信号在时域内分成多段, 并对每段信号调制不同的相位, 之后对每段信号进行余弦幅度加权, 从而产生基于余弦幅度加权的MPSM干扰。该干扰方法经过雷达脉冲压缩处理后, 能够产生具有一定范围的噪声压制式干扰效果, 并且具有低旁瓣特性。利用该方法对目标进行干扰保护的同时, 还能够减少旁瓣干扰功率, 增强干扰实施的隐蔽性, 降低被发现和剔除的概率。理论分析和仿真实验表明了方法的可行性和有效性。

关键词: 多相位分段调制干扰, 余弦幅度加权, 局部压制式干扰效果, 低旁瓣

Abstract:

Multiple phases sectionalized modulation (MPSM) jamming can generate local blanket jamming effect and protect the target against linear frequency modulation pulse compression radar. However, MPSM jamming has a strong sidelobe, which is not helpful for hidden jamming effect. To solve this problem, MPSM jamming method with low sidelobe based on cosine amplitude weighting is proposed. Based on the idea of time-doma in windowed sidelobe suppression, the jamming signal is produced by dividing the received radar signal into several sections and modulating different phases on each section, then weighting each section according to cosine amplitude. After pulse compression, the jamming method can produce a range-controllable blanket jamming effect and have the characteristics of tow sidelobe. The method can not only protect the target, but also reduce the probability of being detected due to the jamming sidelobe. Theoretical analysis and simulation experiments show the feasibility and effectiveness of the method proposed in this paper.

Key words: multiple phases sectionalized modulation jamming, cosine amplitude weighting, local blanket jamming effect, low sidelobe

中图分类号:

TN974

王宏艳, 降佳伟, 蒲娟, 吴彦鸿, 冉达. 基于余弦幅度加权的低旁瓣多相位分段调制干扰方法[J]. 系统工程与电子技术, 2021, 43(11): 3185-3193.

Hongyan WANG, Jiawei JIANG, Juan PU, Yanhong WU, Da RAN. Multiple phases sectionalized modulation jamming method with low sidelobe based on cosine amplitude weighting[J]. Systems Engineering and Electronics, 2021, 43(11): 3185-3193.

图/表 7

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参数	数值
载频/GHz	3
带宽/MHz	100
脉宽/μs	10
调频率/(MHz/μs)	10
采样率/MHz	120
干信比/dB	5

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基于余弦幅度加权的低旁瓣多相位分段调制干扰方法

Multiple phases sectionalized modulation jamming method with low sidelobe based on cosine amplitude weighting

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