%0 Journal Article
%T A New Method for Estimating the Rotation Angle of ISAR Image<br>一种估计ISAR成像转角的新方法
%A Wang Yong
%A Jiang Yi-cheng
%A <br>王勇
%A 姜义成
%J 电子与信息学报
%D 2007
%I 
%X The estimation of rotation angle is the precondition for ISAR imaging. In this passage, a new method based on the analysis of the echo signals is proposed. The signals in different range bin are approximated as the multi-component third-order polynomial signals, and the proportion of third-order phase coefficient to first-order phase coefficient is constant just equal to the square of the rotation rate. Then the parameters of the third-order polynomial signal are estimated by the maximum likelihood method. The results of real data show the validity of the method proposed.
%K ISAR imaging
%K Estimation of rotation angle
%K Maximum Likelihood(ML)<br>ISAR成像
%K 转角估计
%K 最大似然
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=55570269011BE003&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=38B194292C032A66&sid=68FF5306A8F9C315&eid=C81D738643975BB0&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=8