匹配傅里叶变换的SAR多普勒参数估计  

Doppler Parameter Estimation for SAR using Match Fourier Transform

作　　者：朱力[1] 胡学成[2] 林幼权[1] 

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

出　　处：《中国电子科学研究院学报》2006年第2期152-156,161,共6页Journal of China Academy of Electronics and Information Technology

摘　　要：讨论了SAR的基本信号模型,针对这一模型提出了应用匹配傅里叶变换估计SAR多普勒参数的新方法。文中给出了理论分析和仿真,并用机载SAR回波实际数据进行了多普勒参数估计,根据估计的多普勒参数给出了成像结果,表明了该方法可对SAR数据进行盲处理估计出多普勒参数,且精度高。The basic signal model of SAB is discussed. According to the model, a new method of Doppler Pararneter Estimation for SAR is proposed. At the same time, theoretical analyses and simulation results are given. In addition, we give the Doppler Parameter Estimation using the airborne SAR experimental echo data. In the end, the image of the SAR for the estimated Doppler parameter is obtained. The simulation results and the images prove that the method can make blind processing for SAR data and can efficiently estimate Doppler Parameter, and show that the precision of estimation is high.

关 键 词：匹配傅里叶变换 多普勒参数估计 匹配傅里叶频率 

分 类 号：TN957[电子电信—信号与信息处理]