高分七号卫星姿态精度评价与分析
Evaluation and Analysis of Attitude Accuracy of Gaofen-7 Satellite
沈俊烨 1莫凡 2谢俊峰 3李响 4陆栋宁 5赵健伊1
作者信息
- 1. 辽宁工程技术大学测绘与地理科学学院,辽宁 阜新,123000
- 2. 自然资源部国土卫星遥感应用中心,北京,100048
- 3. 辽宁工程技术大学测绘与地理科学学院,辽宁 阜新,123000;自然资源部国土卫星遥感应用中心,北京,100048
- 4. 武汉大学遥感信息工程学院,湖北 武汉,430079
- 5. 北京控制工程研究所,北京,100090
- 折叠
摘要
高分七号卫星是我国首颗亚米级立体光学测绘卫星,为全面评价和分析卫星的姿态数据,提出精确性、稳定性及几何定位精度评估方法.结果表明:1a1b星敏的光轴夹角中误差优于0.6″,而2a2b星敏的优于1.9″;星上实时滤波姿态的欧拉角的中误差优于0.3″;地区几何定位精度为:山东地区的平面位置与高程的均方根值(RMS)分别为 4.4 m、3.0 m,江苏地区为6.5 m、2.1 m,宁夏地区为8.8 m、3.8 m.
Abstract
The Gaofen-7 satellite is China's first sub-meter three-dimensional optical mapping satellite.In order to com-prehensively evaluate and analyze the attitude data of the satel-lite,this article proposes a set of accuracy,stability and geo-metric positioning accuracy analysis methods based on raw da-ta obtained by the star sensor and gyroscope and real-time fil-tered attitude data on the satellite.The test results show that:the error of the optical axis angle of the domestic star sensor is better than 0.6 ″;while the imported star sensor is better than 1.9 ″;the error of the Euler angle of the real-time filtering at-titude on the satellite is better than 0.3″;The geometric posi-tioning accuracies in different regions are:the root mean square(RMS)values of plane position and elevation in Shan-dong are 4.4 m and 3.0 m respectively,in Jiangsu they are 6.5 m and 2.1 m,and in Ningxia they are 8.8 m and 3.8 m.
关键词
高分七号卫星/几何精度/姿态数据/可靠性分析Key words
Gaofen-7 satellite/geometric accuracy/attitude data/reliability analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据