杂波背景下机载雷达信号参数的射频隐身优化

doi:10.12305/j.issn.1001-506X.2021.11.19

Abstract

Abstract:

In the face of the opponent's advanced passive detection system, radio frequency (RF) stealth is an important means of anti-jamming for airborne radar. This paper first analyzes the RF stealth target model for airborne radar target detection under clutter conditions.Then, under the background of ground clutter and sea clutter, the RF stealth parameter design method of airborne radar based on the technologies of pulse cancellation filtering and constant false alarm rate (CFAR) detection is analyzed with intercept factor as the performance evaluation index of RF stealth, and the corresponding RF stealth optimization model of airborne radar signal parameters is established.The simulation uses genetic algorithm to solve the key parameters of the airborne radar signal such as radiation power, dwell time and cumulative number of pulses in the model. The simulation results show that the signal parameter optimization model under the two kinds of clutter background can effectively improve the RF stealth performance of airborne radar.

Key words: radio frequency (RF) stealth, ground clutter, sea clutter, pulse cancellation, constant false alarm rate (CFAR) detection

CLC Number:

TN957.51

Weiqiang YU, Fei WANG, Ping SUN, Jianjiang ZHOU, Jun CHEN. RF stealth optimization of airborne radar signal parametersunder clutter background[J]. Systems Engineering and Electronics, 2021, 43(11): 3194-3201.

Figures/Tables 13

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References 26

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参数	取值范围
P_T/dBw	0~37
τ/μs	1~100
N	1~1 000
G_T/dB	0~35
τ_b/μs	0.01~1

参数	取值范围
R_Dmin/km	41~150
T_dmax/s	0~4
σ⁰/dB	-31~-16
σ_t/m²	0.1~50

参数	取值范围
R_Dmin/km	41~180
T_dmin/s	0~4
σ⁰/dB	-35~-22
σ_t/m²	1 000~10 000

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RF stealth optimization of airborne radar signal parametersunder clutter background

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