卫星轨道力学模型分析

本文分析了目前卫星定轨中采用的轨道力学模型误差状况。使用Ｌａ－ｇｅｏｓ卫星的全球激光测距资料，利用长短弧定轨比较方法，给出了力学模型误差对此卫星的影响特性，并对所采用的力模型进行定性、定量分析。结果表明，卫星长弧定轨误差源来自于力学背景尚不十分清楚的因素。

Analysis of the Orbit Dynamical Models of Satellite

The error properties of the dynamical models in the orbit determination of satellite are investigated in great detail under the influence of various perturbations. Using the method of the comparison of long-arc and the short arc orbit determination,the some numeracal results of the orbit errors with the laser range obserations from Lageos satellite are given out. The dynamical model errors are grantitatively analysed, the results indicated that the errors of orbit determination caused by the dynamical models mostly come from the factors which the generatel backgroud are not clear