红外与激光工程, 2015, 44 (11): 3317, 网络出版: 2016-01-26
一种基于光学测量的航天器结构分析方法
A new method of optical measurement-based spacecraft structure analysis
空间目标 形状分解 小波矩 粗糙集 多尺度特征 space target shape decomposition wavelet-moment rough set multi-scale feature
摘要
对空间目标进行形态结构分析, 对于航天器空间操作和空间攻防等空间任务具有重要意义。探索了一种空间目标结构分析方法。首先利用最小曲率准则和最短分割线准则,并结合目标骨架,构建了一种新的形状分解的方法;在此基础上,将小波矩特征引入到卫星部件形状分析中,并利用粗糙集约简算法选择有效的小波矩特征;最后利用支持向量机构造了多尺度形状识别器,结合目标先验信息实现对空间目标结构的分析。仿真实验结果表明了所提方法的有效性。
Abstract
Morphological structure analysis of space target is significant for space missions, such as space defense, space operations, et al. A space object structure analysis method was presented. First, a shape decomposition method was constructed by combining the minimum components criterion, the shortest internal length criterion and target skeleton. Based on which, the wavelet-moment was introduced into the analysis of satellite components, and the effective features were selected by the rough set reduction algorithm. At last, a multi-scale shape recognizer was presented by support vector machine, and thus the structure of space target was analyzed. Experiments on simulation data show that the proposed algorithm is efficient.
滕书华, 鲁敏, 马燕新, 杨阿锋, 张军. 一种基于光学测量的航天器结构分析方法[J]. 红外与激光工程, 2015, 44(11): 3317. Teng Shuhua, Lu Min, Ma Yanxin, Yang Afeng, Zhang Jun. A new method of optical measurement-based spacecraft structure analysis[J]. Infrared and Laser Engineering, 2015, 44(11): 3317.