基于稀疏A*算法的微小卫星飞行姿态静环境规划  

A Static-environment Attitude Planning for Micro-satellite Based on Sparse A* Search

作　　者：周梦晓[1] 蔡倩[1] 周建江[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《火力与指挥控制》2015年第7期31-36,共6页Fire Control & Command Control

基　　金：国家"八六三"计划基金资助项目(4015-187001)

摘　　要：提高微小卫星的低可观测特性能够有效提升微小卫星的使用效率和生存能力,因此,设计了一种以稀疏A*算法(SAS)为基础的微小卫星低可观测飞行姿态静环境规划算法。通过对微小卫星的俯仰角,方位角和横滚角等姿态角进行调整,从而可以有效降低微小卫星在威胁雷达方向上的RCS值,提高微小卫星的低可观测特性。通过对工作频率在S波段和VHF波段的威胁雷达对微小卫星的威胁性进行仿真,结果显示规划后微小卫星的低可观测性能明显改善,满足飞行姿态规划的需求。To improve the low observability of micro-satellite,a static-environment flying attitude planning algorithm for micro-satellite is designed based on sparse A＊ search. By the adjustment of the pitching angle and the azimuth angle of micro-satellite,it＇s RCS in the direction of the threat radar has been effectively reduced,which means that it＇s low observability has been improved. Through the result of the simulation of threating from radars which have two kinds of working frequency,one is S wave band and the other is VHF wave band,the threating has been obviously reduced compared with situation when there is no planning,the result shows that the algorithm meet the demands of flying attitude planning.

关 键 词：微小卫星 姿态规划 低可观测性 SAS 分段SAS 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]