周文彬1,
李虎2,,
1.哈尔滨工程大学信息与通信工程学院 哈尔滨 150001
2.试验物理与计算数学国家级重点实验室 北京 100876
基金项目:国家自然科学基金(62071137)
详细信息
作者简介:赵忠凯：男，1979年生，副教授，硕士生导师，主要研究方向为雷达信号侦察与干扰技术、宽带信号检测与识别
周文彬：男，1996年生，硕士生，研究方向为宽带雷达干扰技术
李虎：男，1986年生，高级工程师，主要研究方向为雷达电子对抗
通讯作者:李虎 sdbzlh@163.com
中图分类号:TN974计量
文章访问数:197
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被引次数:0
出版历程
收稿日期:2020-08-24
修回日期:2021-04-03
网络出版日期:2021-06-21
刊出日期:2021-10-18
LFM Radar Jamming Technology Based on Non-integer Order SSC Blind Frequency Shift
Zhongkai ZHAO1,Wenbin ZHOU1,
Hu LI2,,
1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
2. National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematic, Beijing 100876, China
Funds:The National Natural Science Foundation of China (62071137)
摘要
摘要:传统频谱扩展与压缩(SSC)盲移频干扰的阶数为整数，为了实现精确的位置干扰，需要调整不同的处理延时，在实际应用中存在一定的局限性。该文对整数阶盲移频技术进行了改进，提出了一种基于非整数阶SSC盲移频的LFM雷达干扰技术。该技术在干扰机处理延时不变的情况下，通过改变SSC盲移频的阶数来实现精确的位置干扰。该文推导了一种高效的非整数阶SSC盲移频干扰实现方法，同时通过Newman序列控制信号的初相来减小压制干扰信号的峰均比(PAPR)。仿真结果表明，该文算法在指定干扰机处理延时的情况下，可以实现假目标欺骗干扰和相参密集压制干扰，能够有效对抗脉冲压缩体制雷达，具有较好的工程应用价值。
关键词:LFM雷达/
压制干扰/
欺骗干扰/
频谱扩展与压缩算法/
峰均比抑制
Abstract:The order of traditional Spectrum Spread and Compression (SSC) blind frequency shift jamming is an integer. To achieve accurate position interference, different processing delays need to be adjusted, which has certain limitations in practical application. In this paper, the integer order blind frequency shift technology is improved, and a Linear Frequency Modulation (LFM) radar jamming technology based on non-integer order SSC blind frequency shift is proposed. The jamming can be realized by changing the precise position of the radar in different situations. In this paper, an efficient implementation method of blind frequency shift jamming for non-integer order SSC is derived. Meanwhile, the initial phase of the signal is controlled by the Newman sequence to reduce the Peak-to-Average Power Ratio (PAPR) of the jamming signal. The simulation results show that the algorithm can achieve false target deception jamming and coherent dense suppression jamming under the processing delay of a specific jammer, which can effectively counter pulse compression radar, and has good engineering application value.
Key words:Linear Frequency Modulation (LFM) radar/
Suppression jamming/
Deception jamming/
Spectrum Spread and Compression (SSC) algorithm/
Peak-to-Average Power Ratio (PAPR) suppression
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