摘要
以RKF7(8)和Adams12阶PECE方法为例,分析了单步法积分器和多步法积分器在圆柱体、双锥形地影模型下,地影边界对导航卫星轨道积分的影响,并提出了相应的改进方法。改进方法原理简单,在3d积分弧段内最大误差优于cm级。
In this article, it is analyzed that how the GEO orbit propagation with a singe step numerical integrator, the representative Runge-Kutta （RKF7 （8）） method, or a multi-steps one, the representative 12 degrees PECE method, affected by the boundaries of cylinder shadow model or conical shadow model. And more, some correcting methods are introduced according to the idiographic problems. All the introduced methods are convenient for users to program with simple principles, and lead to high accuracy corrected orbit. The maximal bias in 3 day length arcs is in centimeter magnitude, even less.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2007年第5期450-453,共4页
Geomatics and Information Science of Wuhan University
