频率捷变雷达波形对抗技术现状与展望

doi:10.12305/j.issn.1001-506X.2021.11.11

Abstract

Abstract:

As one of the hot research directions in the field of radar, frequency agility technology has gradually received the attention of scholars at home and abroad and has been widely used in the field of electronic countermeasures. Compared with the traditional fixed carrier frequency radar, the pulse-to-pulse frequency agility radar can autonomously evade the frequency band covered by interference and are difficult to be intercepted and identified by reconnaissance aircraft, and have unique advantages in active waveform countermeasures. This article systematically introduces the characteristics of frequency agile radar, comprehensively combs the domestic and foreign research results of the new frequency agile radar system, summarizes the research progress of inter-pulse frequency agile radar signal processing and the realization of radar receiver system, and analyzes the future development trends and problems of frequency agility radar.

Key words: frequency agility, anti-interference, coherent processing

CLC Number:

TN958.6

Yinghui QUAN, Wen FANG, Minghui SHA, Xiada CHEN, Feng RUAN, Xinghua LI, Fei MENG, Yaojun WU, Mengdao XING. Present situation and prospects of frequency agility radar waveform countermeasures[J]. Systems Engineering and Electronics, 2021, 43(11): 3126-3136.

Figures/Tables 9

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References 60

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参数	数值
脉冲宽度/μs	4
信号带宽/MHz	24
初始载频/GHz	14
步进带宽/MHz	20
跳频总数/个	64
目标距离/m	4 000

参数	数值
载频跳变范围/GHz	8.84~10.94
重频抖动范围/Hz	875~1 125
信号带宽/MHz	80
脉冲数/个	64

参数	数值
脉宽/μs	2
信号带宽/MHz	25
脉冲数/个	128
跳频总数/个	256
载频跳变范围/GHz	34.2~35.2
脉冲重复周期/μs	240
采样率/MHz	60

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Present situation and prospects of frequency agility radar waveform countermeasures

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