摘要
偏置相位中心多波束合成孔径雷达(synthetic aperture radar,SAR)解决了分辨率和测绘带宽之间的矛盾,但在应用中会出现新的误差。提出并分析了天线长度方向偏离飞行方向(方位向)所引起的回波信号相位误差及对成像的影响,给出了计算机仿真结果。并提出了可以应用天线姿态误差来解决方位向非均匀采样问题的可能性。
The contradiction of two most important specifications of space-borne synthetic aperture radar （SAR） azimuth resolution and swath width is well resolved by displacing phase centers multiple azimuth beam （MAB） techniques. But it creates some new errors in application. The phase error and the unwanted effect of imaging caused by antenna length direction deflecting the flying （or azimuth） direction are mainly analyzed, and the computer simulation results are presented. At the end, a method that may resolve the non-uniform sampling by adopting the attitude error is proposed.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2007年第8期1233-1237,共5页
Systems Engineering and Electronics
关键词
合成孔径雷达
方位向多波束
偏置相位中心
天线姿态误差
synthetic aperture radar
multiple azimuth beam
displaced phase center
antenna attitude error
