载频-重频联合捷变雷达目标参数估计方法

doi:10.12305/j.issn.1001-506X.2023.02.10

Abstract

Abstract:

Aiming at the target parameter estimation problem of the frequency agility and pulse repetition frequency (PRF) agility radar system, a target parameter estimation method for the frequency agile and agile radar based on the multiple signal classification (MUSIC) algorithm is proposed. The processing of the time domain signal is equivalent to that of the space domain array signal by space-time equivalence of the signal model, and the super resolution array signal processing method is applied to the parameter estimation of the target. Therefore, range and velocity estimation of the target is equivalent to 2-D parameter estimation in array signals, which solves the problem of parameter estimation caused by frequency agility and PRF agility. The simulation results verify that the method can effectively realize the super resolution estimation of range and velocity.

Key words: frequency agility and pulse repetition frequency agility, multiple signal classification (MUSIC) algorithm, parameter estimation, super resolution

CLC Number:

TN957.51

Zhixing LIU, Yinghui QUAN, Minghui SHA, Wen FANG, Xia GAO, Mengdao XING. Target parameter estimation method for frequency agility and pulse repetition frequency agility radar[J]. Systems Engineering and Electronics, 2023, 45(2): 401-406.

Figures/Tables 10

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参数类型	数值	参数类型	数值
脉冲宽度/μs	4	采样频率/MHz	48
初始载频/GHz	14	脉冲组个数/个	64
信号带宽/MHz	24	载频捷变间隔/MHz	9
总捷变码字/个	128	重频捷变间隔/μs	0.1
平均脉冲重复频率/kHz	25	跳频带宽/GHz	2

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Target parameter estimation method for frequency agility and pulse repetition frequency agility radar

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