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自主天文导航系统中的两种状态方程特性分析 被引量:2

Two kinds of motion equations used in autonomous celestial navigation and characteristic analysis
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摘要 针对天文导航系统所采用的状态方程和量测方程对系统的性能和定位精度的影响,介绍了天文导航中常用的两种状态方程,航天器轨道动力学方程和牛顿受摄运动方程。通过计算机仿真结果分析比较了采用这两种状态方程的自主天文导航系统及其各自的特点和导航性能的差别,为在不同的情况下选用适当状态方程提供参考。 Different celestial navigation systems, which uses different kinds of motion equations and measurement equations have different navigation performance and precision. Two kinds of motion equations common used in autonomous celestial navigation system are introduced. A simulation result demonstrates the different characteristic of two kinds of system and a reference is given for chices in different circumstance.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2004年第12期1829-1831,1870,共4页 Systems Engineering and Electronics
基金 国家自然科学基金 民用航天预研基金(60174031)资助课题
关键词 自主导航 天文导航 状态方程 autonomous navigation celestial navigation motion equation
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