卫星干涉式垂直探测仪图像导航配准成像试验方法  

Imaging Test Method of Navigation and Registration for Satellite GIIRS Images

作　　者：王田野 吕旺[1] 宋效正[1] 信思博[1] 董瑶海[2] 顾强[1] WANG Tianye;LYU Wang;SONG Xiaozheng;XIN Sibo;DONG Yaohai;GU Qiang(Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Shanghai Academy of Spaceflight Technology,Shanghai 201109,China)

机构地区：[1]上海卫星工程研究所,上海201109 [2]上海航天技术研究院,上海201109

出　　处：《航天器工程》2021年第1期132-138,共7页Spacecraft Engineering

基　　金：国家重大航天工程。

摘　　要：干涉式垂直探测仪(GIIRS)是气象观测的重要有效载荷,对卫星平台的稳定性要求很高,采用图像导航配准技术可解决星上活动部件运动、卫星平台姿态抖动对GIIRS成像的影响。为了在地面验证GIIRS的成像性能,文章提出图像导航配准成像试验方法。利用3轴气浮台模拟3轴稳定卫星零重力下的自由转动,利用GIIRS样机模拟GIIRS的成像特性和在轨扰动,验证了动力学补偿特性和图像运动补偿特性。试验结果表明:采用图像导航配准成像试验方法,卫星特定频率下的姿态稳定度提升了80.8%,图像运动补偿精度优于13.78μrad,满足GIIRS成像需求。GIIRS(geostationary interferometric infrared sounder)is the key payload for meteorological observation,which requires high stability of the satellite platform.In order to solve the influence of the rotation of the moving components and the attitude jitter of the satellite platform on the GIIRS,image navigation and registration technology can be applied.In order to validate the performance of GIIRS on the ground,a imaging test method of navigation and registration is proposed.In the simulation,the three-axis air-bearing platform is used to simulate the free rotation of the three-axis stable satellite under zero gravity.The GIIRS prototype is used to simulate the imaging characteristics and on-orbit perturbation.The dynamic compensation and image motion compensation performances are verified.By applying the method,the attitude stability of the satellite at a specific frequency is increased by 80.8%,the accuracy of image motion compensation is finer than 13.78μrad,and the imaging requirements of GIIRS can been guaranteed.

关 键 词：卫星干涉式垂直探测仪 图像导航配准 成像试验 3轴气浮台 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]