Experimental studies on circular SAR imaging in clutter using angular correlation function technique

作     者：Chan, TK Kuga, Y Ishimaru, A 

作者机构：Univ Washington Dept Elect Engn Seattle WA 98195 USA 

出 版 物：《IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING》 (IEEE Trans Geosci Remote Sens)

年 卷 期：1999年第37卷第5期

页      面：2192-2197页

核心收录：

学科分类：0808[工学-电气工程] 1002[医学-临床医学] 08[工学] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 

基　　金：National Science Foundation, NSF, (ECS9522031) Office of Naval Research, ONR, (N00014-97-1-0060) 

主　　题：angular correlation function circular synthetic aperture radar clutter suppression confocal imaging correlation techniques frequency correlation function target detection 3-D image reconstruction 

摘      要：This paper describes a novel approach for three-dimensional (3-D) imaging in a heavy-clutter environment. The proposed approach consists of two techniques, The first calls for the use of a synthetic aperture radar (SAR) moving in a circular orbit, whereas the second involves using angular correlation function (ACF) measurement for achieving clutter suppression. To demonstrate the imaging and clutter suppression capabilities of this combined approach (circular-correlation SAR), microwave imaging experiments are conducted at X-band frequencies (7-13 GHz). It is found that in heavy-clutter environments, this combined SAR approach outperforms conventional SAR, resulting in clearer images with enhanced target-to-clutter ratio.