摘要
在分析对SAR成像分辨率有影响的几种主要运动偏差因素后,对基于GPS/IMU组合导航的运动补偿方案的测量误差进行了理论分析和仿真实验。结果证明这种补偿方案能够很好地测出天线高频运动偏差,而残留的测量误差恰是能通过"基于回波的补偿方式"很好处理的低频误差。文中的推导结论及仿真结果可用于工程中制定组合导航系统的指标和对陀螺、加速度计的选型。
Several primary motion errors affecting the SAR image resolution is analyzed firstly.Then the analysis and simu-lation of motion compensation system based on GPS/IMU integrated navigation is done.The results show that this system can obtain the accurate high frequency motion errors and the remainder error can be compensated well through the technology of 'Compensation based on Echo Data'.The analysis in this paper is useful to design the standard of GPS/IMU integrated navigation and select the accelerometers and gyros.
出处
《遥测遥控》
2009年第3期41-46,53,共7页
Journal of Telemetry,Tracking and Command
