星载合成孔径雷达的运动效应

Motion Effect in Satellite Borne Synthetic Aperture Radar

对星载合成孔径雷达的运动效应进行了详细的分析，给出了雷达回波的多普勒参数和距离徙动特性的一般关系式。详细论证了卫星运动对多普勒参数和成像的影响，导出了描述速度误差、加速度误差和姿态误差的一系列定量计算公式，并就运动误差的补偿方法进行了阐述。

This paper analyzes detailly the motion effect in a satellite borne synthetic aperture radar(SAR). The general relations for the echoes Doppler parameters and range migration properties in stellite borne SAR are given. The effect of satellite's motions on Doppler parameters and images is proven in detail. and the quantitative representations for satellite motion velocity errors, acceleration errors, and attitude errors have been derived. The motion errors processing methods are also discussed.