%0 Journal Article
%T Phase Calibration Method for ATI-SAR System Based on Least Square Estimation and Wavelet-Denoising<br>基于最小二乘估计和小波去噪的ATI-SAR自适应相位校正方法
%A Zhang Huan-sheng
%A Qi Hai-ming
%A Yang Ru-liang
%A <br>张焕胜
%A 祁海明
%A 杨汝良
%J 电子与信息学报
%D 2007
%I 
%X ATI-SAR system requires that the phase characteristic of the two channels is precisely matched. This paper analyzes the phase error of ATI-SAR system, gives the mathematic model, proposes a simple phase calibration method for ATI-SAR system based on Least Square Estimation (LSE) and wavelet-denoising and gives the calibration flow. The simulation results demonstrated that the phase error of ATI-SAR system is removed by this method. This method does require any knowledge of the platform velocity and actual crab angle. The problem of wrapped interferometric phases can be resolved by iterative of this method.
%K Synthetic Aperture Radar(SAR)
%K Moving Target Indication(MTI)
%K Along Track Interferometry(ATI)
%K Least Square Estimation(LSE)
%K Wavelet-denoising<br>合成孔径雷达
%K 动目标指示
%K 沿迹干涉
%K 最小二乘估计
%K 小波去噪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=2C09C9B81F93DAF5&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=F79A45851FD04E0C&eid=BB5084A31068995F&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10