卫星定轨综述

对卫星定轨中的热点问题作一综述，内容包括短弧定轨和长弧精密定轨。对于短弧定轨(通常指初轨)，不仅从原理上分析其关键之处，还介绍如何将适用于无摄运动的特殊定轨方法推广用于同时考虑各种摄动的受摄运动，并可同时适用于圆锥曲线的各种情况：变化的椭圆轨道、抛物线轨道和双曲线轨道，后者在深空探测器的运动过程中将会遇到。对于长弧精密定轨，阐述当今提高精密定轨精度的力模型补偿问题以及几何定轨的提法，天地基网联合定轨和星-星相对测量的自主定轨问题。

Summary on Satellite Orbit Determination

This paper gives a summary of hot issues, including short arc orbit determination and long arc precision orbit determination, in satellite orbit determination. It not only analyzes, in principle, the critical points of short arc orbit determination (usually referring to initial orbit), but also introduces how to apply special orbit determination methods for in perturbation cases that take into account some perturbation and that can be used in hyperbolic and parabolic orbits. For long arc precision orbit determination, discussions are given on force model compensation, geometrical orbit determination, joint space-based and ground-based orbit determination and autonomous satellite-satellite relative orbit determination.