模型误差与轨道精度

应用模型与实际模型总是存在差异，如何从理论上探讨这种差异的影响以及在实际处理中如何进行选择是非常困难的。本文中分析了差异的主要原因，明确了模型误差的概念，并从理论上探讨了模型误差对轨道估计精度的影响，给出了具体的影响误差计算公式；在此基础上，提出了轨道参数的估计效率和客户效率的概念，并由此导出了模型误差处理原则，从而回答了实际数据处理中，模型误差处理方案的选择问题。最后，给出了一个应用实例

Modeling Error and Orbit Precision

There always exists difference between the applied model and actual model and so metimes it can give rise to the serious affection on the estimation precision of orbit.How to study the affection of modeling error on orbit and how to deal wit h it are difficult.In this paper,we analyze the main reasons of modeling error a nd give a theoretical research about its affection on orbit and present a comput ation formula of precision.Based on the above,we present the conception of both estimation efficiency and client efficiency of orbit to give the dealing method of model error.This solves the choice problem about the model error in practice .At last,an applied example is given.