机载平台成像影响分析及运动补偿FPGA实现  

Effect on Imaging of Airborne Platform and Implementation of Motion Compensation on FPGA

作　　者：郝阳[1] 李翀[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2014年第8期39-42,共4页Modern Radar

摘　　要：合成孔径雷达成像理想条件是平台需匀速直线运动,机载平台受气流影响扰动较大,对此采取的措施有基于高精度仪表的数据补偿和基于信号处理算法的补偿。高分辨率图像要求高精度的惯导测量数据,回波数据里的快速扰动误差需进行基于信号处理的运动补偿来实现。文中结合飞行数据重点讨论平台扰动对成像结果的影响和运动补偿的FPGA实现。SAR imaging ideal conditions is platform should be uniform motion in a straight line, The airborne platform is affected by the airflow disturbance is significant , so one of the solution is the data compensation from high-precise instrument, the other one is the compensation from signal processing algorithm. High resolution image need high-precision inertial measurement data The rapid perturbations in the echo data error need a motion compensation based on signal processing to realize. The discussion of this article will centre on the effect of airborne platform from air current and the FPGA realization of motion compensation.

关 键 词：机载合成孔径雷达 成像影响 运动补偿 现场可编程门阵列 

分 类 号：TN957.52[电子电信—信号与信息处理]