低轨卫星的非差运动学精密定轨  

ZERO-DIFFERENCE KINEMATIC PRECISE ORBIT DETERMINATION OF LOW EARTH ORBIT SATELLITE

作　　者：王伟[1,2] 汪海洪[1,2] 罗佳[1,2] 钟波[1,2] 

机构地区：[1]武汉大学测绘学院,武汉430079 [2]地球空间环境与大地测量教育部重点实验室,武汉430079

出　　处：《大地测量与地球动力学》2009年第2期140-142,共3页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40704003);国家重点基础研究发展计划(973计划)项目(2007CB714405)

摘　　要：总结了低轨卫星精密定轨的方法,分析了非差运动学定轨的原理、步骤和定轨精度的影响因素。并将非差运动学定轨与双差运动学、非差简化动力学、双差简化动力学定轨进行比较,发现它可以获得与其他定轨方法相近的精度,并且计算简单。The approaches to precise orbit determination （POD） for satellites in Low Earth Orbit （LEO） were sumed up, and the theory, the steps and the factor influencing the accuracy of zero-difference kinematic POD were analyzed. Futhermore, by comparing the zero-difference kinematic orbit determination with double-difference kinematic, zero-difference reduced-dynamic and double-difference reduced-dynamic orbit determination it is found that with this method not only the accuracy close to that with other three methods can be attained, but also it is simple for computing.

关 键 词：低轨卫星 运动学精密定轨 非差 双差 GPS 

分 类 号：P227[天文地球—大地测量学与测量工程]