中文摘要：

为了提高雷达成像的质量．得到高分辨率的SAR图像就必须保证有精确的运动补偿方法来校正运动误差对成像的影响。提出了一种基于惯导数据INS的视线方向位移误差的补偿方法，采用了低精度低成本的INS．对此部分的原理及实现进行了深入的建模分析和推导，并给出仿真结果。结果表明，基于惯导进行运动补偿时低精度也可满足要求。

英文摘要：

In order to improve the quality of radar＇s imaging and obtain high resolution imageries of SAR ,we should use the method of motion compensation to proof the affect of imaging. In this paper the method of error compensation in line sight of direction in INS was analyzed, using low-precision and low-cost INS, in-depth analysis and modeling of this part of the principle and achievement, the simulation results were given. Analysis results show that the motion compensation of airborne SAR can be achieved, even though it based on Low-cost INS.