%0 Journal Article
%T Phase Signatures and Compensating Approach to Moving Target Echoes by Dechirping Processing<br>高速目标解调频处理的相位特性及其补偿
%A Feng De-jun
%A Wang Xue-song
%A Xiao Shun-ping
%A Wang Guo-yu
%A <br>冯德军
%A 王雪松
%A 肖顺平
%A 王国玉
%J 电子与信息学报
%D 2008
%I 
%X Dechirping is an effective method for decreasing the bandwidth of input signals. For high velocity moving targets ISAR imaging, the residual phase arisen from dechirping processing and target moving can not be ignored. The theoretic model of phase signatures is derived thoroughly and the compensation methods are presented when dechirping technology is employed. In addition, the factors which influence residual phase and the precision of compensating are analyzed. According to the signatures of residual phase, a new compensation method is proposed in which the range alignment is applied to estimate the residual phase difference of adjacent echoes. Numerical simulation results illustrate the validities of proposed theories and methods.
%K Moving target
%K Dechirping
%K Phase signature
%K Phase compensation<br>运动目标
%K 解调频
%K 相位特性
%K 相位补偿
%K 高速目标
%K 解调频
%K 信号处理
%K 相位特性
%K 补偿精度
%K Processing
%K Dechirping
%K Target
%K Moving
%K Approach
%K 理论
%K 仿真结果
%K 相位差
%K 估计
%K 包络对齐
%K 利用
%K 因素
%K 补偿方法
%K 性质
%K 相位因子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=01389C74AC4485DAA44125134F71B7A9&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=E158A972A605785F&sid=DE4E739E935BD9A7&eid=753F7A67351FADCC&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=15