%0 Journal Article
%T A Modified StepTransform Algorithm Based on CZT and Its Application to LFM Pulse Compression<br>基于CZT变换的StepTransform算法在脉冲压缩中的应用
%A Zhang Da-wei
%A Wang Yan-fei
%A Zhan Xue-li
%A Fang Li-li
%A <br>张大炜
%A 王岩飞
%A 詹学丽
%A 房丽丽
%J 电子与信息学报
%D 2008
%I 
%X A new modified StepTransform algorithm based on CZT is provided in this paper in order to compensate for the insufficiencies of the traditional StepTransform algorithm. The order of the traditional StepTransform algorithm is changed by FFT for the fine resolution analysis on the first stage and CZT for the coarse resolution analysis on the second stage. The phenomenon of grating lobes and amplitude modulation is avoided and ideal LFM pulse compression result can be gotten in this new method. The validity and feasibility of the new algorithm is tested by the deduction of the formulation and simulation of the theory.
%K SAR
%K StepTransform
%K Subaperture
%K CZT<br>SAR
%K StepTransform
%K 子孔径
%K CZT变换
%K 变换分析
%K 算法原理
%K 脉冲压缩
%K 应用
%K Pulse
%K Compression
%K Application
%K Based
%K Algorithm
%K 有效性
%K 仿真验证
%K 理论
%K 结果
%K Dechirp
%K 回波
%K 线性调频
%K 幅度调制
%K 方法
%K 再利用
%K 数据量
%K 子孔径
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=1958219E8EDAFB8FFF6C9F986691924F&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=0B39A22176CE99FB&sid=31BCE06A2FD82A16&eid=F637763636425CAF&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=8