移频干扰中旁瓣抑制对LFM的影响

Q2 Physics and Astronomy 雷达学报 Pub Date : 2012-11-26 DOI:10.3724/SP.J.1300.2012.20028

Huang Chongpeng, Wang Jian, Xue Baoguo

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引用次数: 0

摘要

旁瓣抑制(SS)几乎可以在每一个线性调频脉冲雷达接收机上找到;移频干扰(SFJ)是利用LFM信号固有的时延和频移耦合特性实现欺骗干扰的重要手段。在此基础上，利用时延和频移率等归一化参数分析了带SS的线性调频的模糊间函数。然后重点讨论了3:1锥比加权、Hamming加权和余弦平方加权，并对检测的相关参数进行了分析。与无SS相比，加权移频信号对干扰损失和加权移频干扰对噪声损失表现为M函数，最大移频速率点为±0.29。而加权移频脉宽损失的影响是不确定的

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The Impact of Sidelobe Suppression in Shift-frequency Jamming against LFM

Sidelobe Suppression (SS) can be found on almost every Linear Frequency Modulated (LFM) pulse radar receiver; Shift-Frequency Jamming (SFJ) is an important method to realize deception jamming using the inherent coupling property between time-delay and frequency-shift of this LFM signal. So, the Inter-Ambiguity Function (IAF) of LFM with SS using normalized parameters including time-delay rate and shift-frequency rate is analyzed. Then the 3:1 cone than weighted, Hamming weighted and cosine square weighted are focused and some parameters related to detection are analyzed. Compared with the none SS, the weighted shift-frequency signal to Jamming loss and the weighted shift-frequency jamming to noise loss are present like M function having the max shift-frequency rate point equal to ± 0.29. And the impact of weighted shift-frequency pulse-width loss are decide by none

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来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Journal of Radars was founded in 2012 by the Institute of Space and Astronautical Information Innovation of the Chinese Academy of Sciences (formerly the Institute of Electronics) and the China Radar Industry Association (CRIA), which is located in the high-end academic journal and academic exchange platform in the field of radar, and is committed to promoting and leading the scientific and technological development in the field of radar. The journal can publish Chinese papers and English papers, and is now a bimonthly journal. Journal of Radars focuses on theory, originality and foresight, and its scope of coverage mainly includes: radar theory and system, radar signal and data processing technology, radar imaging technology, radar identification and application technology. Journal of Radars has been included in domestic core journals and foreign Scopus, Ei and other databases, and was selected as ‘China's high-quality science and technology journals’, and ranked the first in the category of electronic technology and communication technology in the ‘Chinese Core Journals List (2023 Edition)’.