| 基于ESPRIT算法的极化干涉SAR植被高度反演研究 |
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| 引用本文： | 谈璐璐,杨立波,杨汝良.基于ESPRIT算法的极化干涉SAR植被高度反演研究[J].测绘学报,2011,40(3):296-300. |
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| 作者姓名： | 谈璐璐 杨立波 杨汝良 |
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| 作者单位： | 1. 中国电子科技集团第38研究所;2. 中国科学院电子学研究所; |
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| 摘 要： | 由于存在着去相干分量,利用ESPRIT(旋转不变技术)算法对植被区域的极化干涉SAR(PollnSAR)数据进行反演的结果有较严重偏差.针对这一问题,结合极化干涉相干最优理论及其物理散射机制,引入新的散射矢量——相干最优化散射矢量,提出一种改进的基于ESPRIT的植被高度反算法.最后,利用欧空局(ESA)提供的模拟L波...
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| 关 键 词： | 极化干涉SAR 树高反演 ESPRIT 相干最优 |
| 收稿时间： | 2008-10-27 |
| 修稿时间： | 2010-12-20 |
Investigation of Tree Height Retrieval with Polarimetric SAR Interferometry Based on ESPRIT Algorithm |
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| TAN Lulu,YANG Libo,YANG Ruliang.Investigation of Tree Height Retrieval with Polarimetric SAR Interferometry Based on ESPRIT Algorithm[J].Acta Geodaetica et Cartographica Sinica,2011,40(3):296-300. |
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| Authors: | TAN Lulu YANG Libo YANG Ruliang |
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| Institution: | TAN Lulu1,YANG Libo2,YANG Ruliang3 1.No.38 Research Institute,Chinese Electronics Technology Group Corporation,Hefei 230088,China,2.Beijing Aerospace Automatic Control Institute,Beijing 100854,3.Institute of Electronics,Chinese Academy of Sciences,Beijing 100190 |
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| Abstract: | Tree height retrieval results making use of polarimetric interferometry SAR data based on ESPRIT algorithm are seriously biased because of the existence of depolarized components.In order to solve this problem,a modified inversion algorithm combining coherence optimization theory and its physical scattering mechanism is presented.Also,a new scattering vector called coherence optimized scattering vector is introduced to help understanding the algorithm.Finally,the proposed and traditional ESPRIT algorithm is... |
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| Keywords: | polarimetric interferometry SAR tree height retrieval ESPRIT coherence optimization |
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