基于脉冲星观测的导航星座自主导航数据融合方法  

A Data Fusion Method for Navigation Constellation Autonomous Navigation Based on X-Ray Pulsar

作　　者：朱俊[1] 陈忠贵[1,2] 廖瑛[1] 文援兰[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073 [2]中国空间技术研究院,北京100094

出　　处：《国防科技大学学报》2010年第4期19-24,共6页Journal of National University of Defense Technology

基　　金：国家863计划项目(2007AA12Z308);国家部委基金项目(9140A21060107KG0173)

摘　　要：为解决完全依赖基于星间观测的导航星座长期自主导航的基准秩亏问题,提出基于脉冲星和星间链路的组合导航方法。给出了该方法的基本原理。为合理分散计算,采用简化和改进后的广义联邦滤波算法来对两种观测数据进行融合。仿真试验对该方法的合理性和可行性进行了验证。To solve the problem of deficiency of rank existing in navigation constellation long-time auto-navigation based on inter-satellite measurement,a method of integrated navigation based on the Inter-Satellite Links （ISL） and X-ray Pulsar was proposed. The fundamentals of this method were described. To rationalize the computational burden,the generalized federated filters were simplified and improved to fuse the measurements based on ISL and X-ray Pulsar. Finally,the simulation was carried out,and the results proved the rationality and feasibility of this method.

关 键 词：自主导航 导航星座 星间链路 X射线脉冲星 数据融合 

分 类 号：V443.5[航空宇航科学与技术—飞行器设计]