弹载双基前视成像雷达解析-迭代定位方法

doi:10.12305/j.issn.1001-506X.2023.01.09

Abstract

Abstract:

In the guidance stage of missile-borne homing, to solve the problem that traditional bistatic positioning methods are limited by the accuracy of parameters such as speed and angle, an optimal analytical-iterative bistatic positioning method is proposed. First, a missile-borne bistatic forward-looking imaging positioning model is established based on image matching, and the analytical solution set of the positioning model is analyzed and derived. Then the optimal initial iteration point is determined by selection criteria, which is determined by the inertial navigation parameters. Finally, fast iterative search is realized, the optimal three-dimensional coordinates of the receiving radar is obtained, and the precise positioning of the bistatic radar is completed. On this basis, the motion error and matching error models are established, and their influence on positioning accuracy is analyzed through simulation experiments. The results show that under the same experiment conditions and evironment, the proposed analytical-iterative positioning method has high positioning efficiency and accuracy.

Key words: bistatic forward-looking, image matching, analytical-iterative, missile positioning

CLC Number:

TN957

Hengyi ZHAN, Yachao LI, Chunfeng WU, Xuan SONG, Tinghao ZHANG. Analytic-iterative positioning method for missile-borne bistatic forward-looking imaging radar[J]. Systems Engineering and Electronics, 2023, 45(1): 71-78.

Figures/Tables 10

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接收雷达解析解	接收雷达惯导数据大小关系	接收雷达坐标选取准则
x_r	x′_r≥x_C	max(x′_r)
x_r	x′_r < x_C	min(x′_r)
y_r	y′_r≥x′_r	max(y′_r)
y_r	y′_r < x′_r	min(y′_r)
z_r	z′_r≥x′_r	max(z′_r)
z_r	z′_r < x′_r	min(z′_r)

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Analytic-iterative positioning method for missile-borne bistatic forward-looking imaging radar

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