%0 Journal Article
%T A Block Positioning Method for Airborne InSAR System<br>一种机载干涉SAR区域网平面定位算法
%A Mao Yong-fei Xiang Mao-sheng Wei Li-deng
%A <br>毛永飞
%A 向茂生
%A 韦立登
%J 电子与信息学报
%D 2012
%I 
%X Positioning method aims to get the geographical coordinates of each pixel in SAR images. It is necessary to calibrate the parameters of the positioning model to increase precision. This paper presents a method based on sensitivity equations to calibrate the positioning model by linearizing the position errors. Then a method of joint calibration of the positioning model over large areas including several scenes is proposed, and it can achieve the positioning of large areas with few Ground Control Points (GCPs) by using Corresponding Points (CPs) between adjoining scenes. The results show that with few GCPs the accuracy of this method is better than polynomial ortho-rectification model and range-Doppler model.
%K InSAR
%K Positioning
%K Joint calibration
%K Sensitivity equations
%K Corresponding points<br>干涉合成孔径雷达
%K 平面定位
%K 联合平面定标
%K 敏感度方程
%K 同名点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=3B8BF30E16FD5CB0AA805362D7AD4890&yid=99E9153A83D4CB11&vid=339D79302DF62549&iid=CA4FD0336C81A37A&sid=43608FD2E15CD61B&eid=73579BC9CFB2D787&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=11