| 改进的粒子滤波算法在软着陆小天体中的应用 |
| |
| 引用本文： | 张然,崔平远,黄翔宇.改进的粒子滤波算法在软着陆小天体中的应用[J].飞行力学,2008,26(5). |
| |
| 作者姓名： | 张然 崔平远 黄翔宇 |
| |
| 作者单位： | 1. 空间智能控制技术国家级重点实验室,北京,100080;中国空间技术研究院,北京控制工程研究所,北京,100080
2. 哈尔滨工业大学,深空探测基础研究中心,黑龙江,哈尔滨,150001 |
| |
| 基金项目： | “863”国家高技术研究发展计划项目(2005AA735080) |
| |
| 摘 要： | 针对小天体软着陆过程中估计目标天体质心视线的导航方法失效问题,给出了一种基于特征点信息的自主光学导航方法。为了进一步提高对轨道参数的估计精度,考虑到系统中存在的非高斯噪声,以及基本粒子滤波算法带来的粒子退化和采样枯竭问题,给出了一种改进的粒子滤波算法。最后,通过仿真计算,验证了所给出的自主光学导航方法以及改进的粒子滤波算法的可行性和有效性。
|
| 关 键 词： | 软着陆 小天体 自主导航 粒子滤波 |
Application of the Improved Particle Filter Algorithm to Soft Landing on Small Celestial Bodies |
| |
| ZHANG Ran,CUI Ping-yuan,HUANG Xiang-yu.Application of the Improved Particle Filter Algorithm to Soft Landing on Small Celestial Bodies[J].Flight Dynamics,2008,26(5). |
| |
| Authors: | ZHANG Ran CUI Ping-yuan HUANG Xiang-yu |
| |
| Institution: | 1.National Laboratory of Space Intelligent Control;Beijing 100080;China;2.Beijing Institute of Control and Engineering;China Academy of Space Technology;3.Deep Space Exploration Research Center;Harbin Institute of Technology;Harbin 150001;China |
| |
| Abstract: | According to the problem of that,the navigation method estimated the line of sight of the centroid of the target celestial body is disabled in the course of soft landing on small celestial bodies,first of all,this paper brings forward a method of autonomous navigation based on the feature point information.At the same time,considering the non-Gaussian noise existing in the system and the problems of the particles degradation or sampling drying up caused by the elementary particle filter algorithm,the improv... |
| |
| Keywords: | soft landing small celestial body autonomous navigation particle filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
