弹载双基前视SAR构型参数优化设计方法

doi:10.12305/j.issn.1001-506X.2023.11.10

Abstract

Abstract:

Missile-borne bistatic forward-looking synthetic aperture radar (MBFL-SAR), can achieve efficiently two-dimensional high-resolution imaging during the whole terminal diving period of the receive platform. Compared to the airborne/spaceborne bistatic configuration, the missile-missile bistatic configuration has advantages of not easily attacked, the trajectory is flexible and the synthetic aperture time is short. However, due to the missile's strong maneuverability and high requirements for imaging time, the traditional airborne/spaceborne bistatic configuration design method is not suitable for MBFL-SAR. Based on the geometric model of MBFL-SAR imaging, this paper first analyzes the resolution calculation method based on gradient method. Then, combined with the characteristics of the two-dimensional resolution, the influence of the configuration parameters on the two-dimensional resolution is analyzed, and the configuration design method by reducing the dimensions is proposed, while improving the efficiency of configuration parameter design, it can effectively shorten the imaging time. Finally, the effectiveness of the proposed method is verified by simulation experiments based on typical working parameters.

Key words: missile-borne bistatic forward-looking synthetic aperture radar (MBFL-SAR), configuration design, reduce the dimensions of parameters

CLC Number:

TN95

Yuan GUO, Zhiyong SUO, Tingting WANG, Zhiquan DING. Configuration parameter optimization design method of MBFL-SAR[J]. Systems Engineering and Electronics, 2023, 45(11): 3449-3454.

Figures/Tables 9

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References 15

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参数	数值	参数	数值
B/MHz	100	V_R/(m/s)	[0 800-200]
f_c/ GHz	16	P_R/km	[0-9 8]
S/m²	10	\|R_R\|/km	12
$\phi_R /\left(^{\circ}\right)$	48.37	\|R_T\|/km	50
$\phi_T /\left(^{\circ}\right)$	36.87	\|V_T\|/(m/s)	1 500

序号指标	要求值	本文方法①	传统方法
序号指标	要求值	本文方法①	③	④	⑤
ρ_gr/m	-	2.24	3.44	2.60	3.62
ρ_ga/m	-	3.55	3.27	13.75	6.26
Ω/(°)	-	127.28	143.62	95.95	80.06
S/m²	10	9.99	18.96	35.94	23.01

Configuration parameter optimization design method of MBFL-SAR

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