一种新的高分辨SAR成像方法  

A New Approach to High Resolution SAR Imaging

作　　者：朱力[1] 王友林[2] 李敏慧[2] 

机构地区：[1]南京理工大学电子工程技术研究中心,南京210094 [2]南京电子技术研究所,南京210013

出　　处：《现代雷达》2005年第1期7-9,共3页Modern Radar

摘　　要：提出了一种新的SAR成像方法,它利用匹配傅里叶变换实现距离向脉冲压缩;与经典的R-D方法相比较, 其运算量将大大降低,对实时成像处理是非常重要的。文中首先给出SAR信号模型,然后给出距离向匹配傅里叶变换域 的脉冲压缩理论和方法,最后通过仿真计算结果和机载SAR实测数据成像结果,验证了该方法是正确的和可行的。In this paper, a new approach to SAR imaging is proposed. Pulse compression in range dimension is achieved by using matched Fourier transform. Compared with that of classical Range-Doppler algorithm, the computational load of the method can reduce much, which is very important for real time imaging processing. In the paper, the signal model of SAR is given at first, then the method and theory of pulse compression of matched Fourier transform in range dimension is introduced. At last, the results of simulation and image of the new method for airborne SAR with real data prove that it is correct and feasible.

关 键 词：匹配傅里叶变换域 脉冲压缩 SAR成像 

分 类 号：TN958[电子电信—信号与信息处理]