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在上期导航讲座“导航卫星的正常轨道及其描述”一文中,笔者给出了导航卫星正常轨道的基本状态参数及其描述方程。实际上,形如椭圆的正常轨道受到多种摄动力的作用,而成为一种不规则地偏离正常轨道的摄动轨道。本文论述在正常轨道上飞行的卫星受摄运动的主要形式及其描述方程。
In the last navigation lecture, entitled “The normal orbit of a satellites and its description”, the author gives the basic state parameters of the normal orbit of a navigation satellites and their descriptive equations. In fact, the elliptical normal orbit is subject to a variety of perturbation forces and becomes a perturbed orbit that irregularly deviates from the normal orbit. This article discusses the main forms of satellite acquisition in normal orbit and their descriptive equations.