MEO卫星相对相位自主保持策略  

Autonomous orbit maintenance strategy for relative phase of MEO satellite

作　　者：王洋[1] 刘莹莹[1] 黄河[1] 周军[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,陕西西安710072

出　　处：《飞行力学》2014年第4期338-341,346,共5页Flight Dynamics

基　　金：国家高技术研究发展计划(863计划)基金资助(2012AA120602)

摘　　要：针对北斗导航星座的MEO卫星相对相位自主保持问题,推导了相对相位的演化,提出了一种由相对相位的变化量间接求取长半轴偏差,同时结合极限环控制方法的相对相位自主保持策略。在天文导航所带来的大噪声影响下,采用该自主保持策略求得的长半轴偏差与真实长半轴偏差之间相差不大,满足长期轨道保持要求。最后,通过算例验证了间接补偿长半轴后,相对相位的漂移基本被消除。所提出的方法可以为北斗导航星座的MEO卫星的自主轨道保持提供参考。Aiming at the self-maintaining problems of relative phase of MEO satellite of Beidou Navigation Constellation,an evolution of relation phase is deduced and a self-maintained strategy of relative phase of getting semi-major axis deviation indirectly from the variation of relative phase and by combining with the limit cycle control is put forward. Under the influence of the noises brought by celestial navigation,the difference between the semi-major axis variation got by self-maintained strategy and the real semi-major axis variation is not huge and can meet the requirements of long-term pathway. Finally,after verifying and compensating for the semi-major axis indirectly,the drifting of relative phase has been basically removed. The method put forward in this article provides reference for the autonomous orbit maintenance of MEO satellite of Beidou Navigation Constellation.

关 键 词：MEO轨道 轨道演化 相对相位 自主轨道保持 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]