顺轨双基地合成孔径雷达Chirp Scaling成像算法  

Along Track Mode Bistatic Synthetic Aperture Radar Imaging Algorithm Using Chirp Scaling

作　　者：焦程鹏[1] 张升康[1,2] 

机构地区：[1]中国科学院电子学研究所,北京100080 [2]中科院研究生院,北京100039

出　　处：《系统仿真学报》2008年第12期3223-3228,共6页Journal of System Simulation

摘　　要：根据传统SAR处理中的Chirp Scaling原理,采用二阶距离近似模型推导了适用于顺轨飞行模式双基地SAR的Chirp Scaling算法,解决了接收、发射分置引起的雷达响应函数从距离-方位域向二维频域变换的复杂性问题,成功实现双基地SAR成像的高精度Chirp Scaling处理,在任意双基地角下都能够很好地聚焦成像。In term of the fundamentals of traditional Chirp Scaling processing, a new CS Algorithm for along track mode Bistatic Synthetic Aperture Radar was proposed based on second order approximation of range history. The complexity of 2D Fourier transformation of signal impulse response, due to receiver-transmitter separation, was settled. It is a very precision image formation algorithm for along track Bistatic SAR system with various Bistatic angles.

关 键 词：合成孔径雷达(SAR) 双基地合成孔径雷达(BiSAR) CHIRP SCALING算法 顺轨模式 

分 类 号：TN95[电子电信—信号与信息处理]