摘要
In this paper,in order to improve the accuracy of the Synthetic Aperture Radar (SAR) satellite attitude using Global Positioning System (GPS) wide-band carrier phase,the SAR satellite attitude kinematic vector and Kalman filter are introduced.Introducing the state variable function of GPS attitude determination algorithm in SAR satellite by means of kinematic vector and describing the observation function by the GPS wide-band carrier phase,the paper uses the Kalman filter algorithm to obtian the attitude variables of SAR satellite.Compared the simulation results of Kalman filter algorithm with the least square algorithm and explicit solution,it is indicated that the Kalman filter algorithm is the best.
In this paper, in order to improve the accuracy of the Synthetic Aperture Radar （SAR） satellite attitude using Global Positioning System （GPS） wide-band carrier phase, the SAR satellite attitude kinematic vector and Kalman filter are introduced. Introducing the state variable function of GPS attitude determination algorithm in SAR satellite by means of kinematic vector and describing the observation function by the GPS wide-band carrier phase, the paper uses the Kalman filter algorithm to obtian the attitude variables of SAR satellite. Compared the simulation results of Kalman filter algorithm with the least square algorithm and explicit solution, it is indicated that the Kalman filter algorithm is the best.
基金
Supported by the Alarming System Used in Supervising Geological Disaster of Chongqing Economic Committee(No.042YZDZ109).
关键词
计算方法
卫星测量
矢量
卫星定位系统
Synthetic Aperture Radar （SAR） satellite
Attitude measurement
Satellite attitude
Kinematic vector
Kalman filter
