基于高分卫星姿态监测的姿态参数算法优化  

Attitude Parameter Algorithm Optimization Based on Gaofen Satellite Attitude Monitoring

作　　者：缪毓喆 王伟之[3,4] 杨秀策 MIAO Yuzhe;WANG Weizhi;YANG Xiuce(National Key Laboratory of Geo-Information Engineering,Xi’an 71005,China;Xi’an Institute of Surveying and Mapping,Xi’an 71005,China;Beijing Institude of Space Mechanics&Electricity,Beijing 100094,China;Beijing Key Laboratory of Advanced Optical Remote Sensing Technology,Beijing 100094,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 [3]北京空间机电研究所,北京100094 [4]先进光学遥感技术北京市重点实验室,北京100094

出　　处：《航天返回与遥感》2023年第2期53-62,共10页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程。

摘　　要：目前航天测绘相机几何参数的在轨标定通常经由地面检校场数据处理完成。然而,由于一次摄影中难以保证获取的地面检校场影像完整,使得在轨标定周期较长,进而导致实时监测与标定非常困难。“高分十四号”卫星搭载了一种新的姿态测定系统,利用高精度的相机光轴监测实现对相机几何参数的在轨实时标定。文章在此基础上对高分卫星星地相机间夹角在轨解算方案进行了优化,并基于数值仿真和在轨实测数据进行了分析,结果显示优化算法可以进一步提高影像内定向稳定度和最终的定位精度,未来有望在高精度立体测绘应用中发挥重要作用。At present,the on-orbit calibration of geometric parameters of space mapping camera is usually processed by using ground inspection field data after acquiring images,which is a mature and widely used method.A large number of on-orbit calibration experiences have proved that due to the influence of weather and other factors,it is difficult to ensure the integrity of the ground inspection field image acquired in a single photography,which makes the on-orbit calibration based on the inspection field need a long period to obtain effective results,thus making it difficult to realize real-time monitoring and calibration.To solve this problem,the Gaofen-14 satellite is equipped with a new attitude measurement system,which uses high-precision camera optical axis monitoring to realize real-time calibration of the geometrical parameters of the space camera in orbit.On this basis,the on-orbit solution of the angle between satellite and earth cameras of high-resolution satellite is optimized,and the accuracy of key parameters obtained from the remote sensing data is further improved.Based on the numerical simulation and on-orbit measured data,the analysis is carried out.At present,relevant production tests have been carried out,and the algorithm can play a role in the production and application of high-precision stereo mapping.

关 键 词：卫星摄影测量 卫星姿态 在轨实时监测 低频误差 航天测绘相机 

分 类 号：P236[天文地球—摄影测量与遥感] P237[天文地球—测绘科学与技术]