陆探一号卫星严格回归轨道管道导航在轨应用与验证  

Fly Experience of LT1 Satellite's Tube Navigation for Strictly Regressive Orbit

作　　者：杨盛庆 王禹 岳杨 刘美师 王嘉轶 栗双岭 YANG Shengqing;WANG Yu;YUE Yang;LIU Meishi;WANG Jiayi;LI Shuangling(Shanghai Aerospace Control Technology Institute,Shanghai 201109,China;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海航天控制技术研究所,上海201109 [2]上海市空间智能控制技术重点实验室,上海201109 [3]上海卫星工程研究所,上海201109

出　　处：《空间控制技术与应用》2023年第5期11-20,共10页Aerospace Control and Application

基　　金：上海市青年科技启明星计划资助(17QB1401400)。

摘　　要：严格回归轨道的设计基于高阶次的地球非球形引力场模型,属于太阳同步回归、冻结轨道,回归周期始末的地固系空间轨迹高度重合.卫星在轨的自主管道导航以地面设计的严格回归轨道作为参考轨道,卫星与参考轨道形成一个虚拟编队.严格回归轨道的设计未考虑大气阻力,卫星在轨由于大气阻力导致的轨道衰减可由自主定轨与参考轨道的偏差进行估算.为了实现参考轨道的重复使用,严格回归轨道的设计也未考虑历元相关的日月三体引力等摄动影响,轨道倾角的长期运动和周期运动规律需要结合在轨数据进行辨识.本文应用陆探一号的在轨遥测数据,对上述轨道运动特性进行了分析.The strictly-regressive orbit is designed under high precise orbit dynamic with high order non-spherical gravitational field of earth.The strictly-regressive orbit is one kind of sun-synchronous repeat-track orbits,of which the beginning and ending space trajectories over repeat period in WGS84 coordinates are highly coincided.The on-borne tube navigation algorithm sets a strictly-regressive orbit designed before launch as reference orbit,based on which a virtual formation is formed with the real satellite.Since the effect of air drag is not considered in the design process of strictly-regressive orbit,the satellite in orbit can calculate the orbit decay situation and orbit decay rate caused by air drag.To reuse the reference orbit,the effects of third-body perturbation of sun and moon are also not considered in the design process of strictly-regressive orbit.Therefore the long period motion characteristics of orbit inclination are determined during in-orbit flying.Based on the telemetering data of LTl satellite,the orbital charac-teristics mentioned above are analyzed in this paper.

关 键 词：严格回归轨道 管道导航 太阳同步回归轨道 冻结轨道 虚拟编队 大气阻力 日月三体引力 

分 类 号：V474.1[航空宇航科学与技术—飞行器设计]