近圆轨道卫星交叉点概略位置理论计算  

Method for estimating the approximate position of satellite ground-track crossovers for quasi-circular orbit

作　　者：宋小勇 毛悦[1,2] SONG Xiaoyong;MAO Yue(National Key Laboratory of Geo-information Engineering,Xi’an 710054,China;Xi’an Research Institute of Surveying and Mapping,Xi’an 710054,China)

机构地区：[1]地理信息工程国家重点实验室,西安710054 [2]西安测绘研究所,西安710054

出　　处：《测绘科学》2021年第6期14-20,共7页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41774012)。

摘　　要：轨道交叉点在标校卫星系统偏差参数、评估卫星载荷性能以及卫星精密定轨方面具有重要作用。针对现有轨道交叉点计算多采用搜索法结合多项式拟合方法,虽能够获取精确交叉点位置但较难分析交叉点整体分布特征的问题,该文从二体问题解析解出发,推导了交叉点概略位置理论计算公式,并分析了不同卫星轨道交叉点特性,提出了基于交叉点函数的计算方法,并用仿真试验数据对本文方法有效性进行了验证。该文方法为分析交叉点概略位置空间分布特性提供了一种思路。Satellite ground-track crossovers play an important role in many way such as calibrating the bias of satellite, validating the payload performance and orbit determination. Focusing on the problem that the present method such as search method and polynomial fitting method can estimate the ground-track crossovers efficiently, but hardly can recognize the distribution characteristic of crossovers, the paper derivated the theory expression for calculating the ground track crossovers with two-body orbit model.The character of crossovers was studied, and the method to determining the crossovers position by crossovers function was also presented. At last, the correctness of this method was verified by simulating test. The method of this paper presents a resolution for analyzing the distribution of crossovers position efficiently.

关 键 词：卫星轨道 轨道交叉点 二体问题 回归轨道 搜索法 

分 类 号：P228[天文地球—大地测量学与测量工程]