航天器工程2016，Vol.25Issue(6)：18-24,7.DOI:10.3969/j.issn.1673-8748.2016.06.004
资源三号卫星结构稳定性设计与实现
Structural Stability Design and Implementation of ZY-3 Satellite
摘要
Abstract
Structural stability is a key influencing factor for geolocation accuracy of satellite.Structural stability improvement techniques in system design,camera design and structure design of ZY-3 satellite are presented in this paper.Three star trackers and three CCD cameras are integrated as a whole,and brackets of star trackers and cameras are designed especially for high stability.All these measures are used to improve matching accuracy between attitude measuring reference and imaging reference.A low distortion optical system is used to improve the internal stability of cameras.On-orbit pointing direction of camera is analyzed based on satellite FEM model,and ground tests are carried out to verify the design and analysis.ZY-3 images and telemetry data show that the brackets of camera and the star tracker are stable,and geolocation accuracy of image precedes the mission requirement.The techniques employed in ZY-3 can be used in follow-up large-scale mapping satellites and remote sensing satellites with high accuracy.关键词
资源三号卫星/定位精度/结构稳定性/一体化设计Key words
ZY-3 satellite/geolocation accuracy/structural stability/integrated design分类
航空航天引用本文复制引用
高洪涛,罗文波,史海涛,莫凡,李少辉,张新伟,刘希刚,曹海翊..资源三号卫星结构稳定性设计与实现[J].航天器工程,2016,25(6):18-24,7.基金项目
国家重大科技专项工程 （）
