电波科学学报2019，Vol.34Issue(1)：45-51,7.DOI:10.13443/j.cjors.2018091101
基于雷达图像特征的空间目标载荷指向估计方法
Attitude direction estimation for space target antenna load based on radar image features
摘要
Abstract
The direction information of antenna load is an important basis for the perception of space target in orbit. In this paper, an attitude direction estimation method of antenna load based on axial feature matching and reconstruction is proposed, so the direction and observation area of the antenna load can be reversed. First, the two axis directions of the antenna load are extracted from the ISAR image by Randon transform and extreme value detection. Then, the axial feature is matched with the simulation feature template library, and the rough attitude of antenna load can be estimated. Third, using the geometric projection relation of 3 D vector, the formula for calculation the attitude between the orbit coordinate system and the imaging coordinate system is established. Finally, the axial and direction of antenna load can be solved exactly based rough estimation result and geometric projection matrix. The validity of the method is verified by dynamic simulation data.关键词
雷达图像/特征匹配/空间目标/载荷/指向估计Key words
radar image/feature matching/space target/antenna load/attitude direction estimation分类
信息技术与安全科学引用本文复制引用
霍超颖,殷红成,邢笑宇,满良..基于雷达图像特征的空间目标载荷指向估计方法[J].电波科学学报,2019,34(1):45-51,7.基金项目
电磁散射重点实验室 (61424090302) （61424090302）
