收稿日期: 2011-12-08
修回日期: 2012-03-13
网络出版日期: 2013-01-15
基金资助
国家自然科学基金重大课题(60890070);国家自然科学基金面上项目(61072112)资助
DEM extraction via circular synthetic aperture radar
Received date: 2011-12-08
Revised date: 2012-03-13
Online published: 2013-01-15
刘婷 , 林赟 , 谭维贤 , 洪文 , 王彦平 . 圆迹SAR模式DEM提取方法[J]. 中国科学院大学学报, 2013 , 30(1) : 47 -52 . DOI: 10.7523/j.issn.1002-1175.2013.01.008
Circular synthetic aperture radar (CSAR) has the capabilities of 360°all-aspect observation and high-resolution 3D reconstruction. Therefore it can obtain the DEM of the scenes. We propose a method to directly extract the DEM via CSAR. We cut the radar track circle into different arcs and then divide each arc into many sub-apertures. By utilizing the similarity of the sub-aperture images we extract the DEM by the way of the cross correlation. The data obtained in the microwave anechoic chamber indicate that this method is effective.
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