干涉图像第二类统计Goldstein自适应滤波方法
干涉图滤波是InSAR数据处理中的关键步骤之一，滤波结果的优劣会直接影响到相位观测的质量和最终产品精度。本文结合干涉图滤波算法的研究进展，对Goldstein频率域滤波及其经典改进算法进行了系统分析和比较，在此基础上提出了一种基于第二类统计的稳健相干性估计量的Goldstein自适应滤波方法。本文采用模拟数据和Envisat ASAR真实数据与现有方法进行了验证，试验结果表明，新的滤波方法在保持细节和抑制噪声方面优势更加明显。...
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| Published in | Ce hui xue bao Vol. 45; no. 10; pp. 1200 - 1209 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Beijing
Surveying and Mapping Press
01.10.2016
河海大学地球科学与工程学院,江苏 南京,211100 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 1001-1595 |
| DOI | 10.11947/j.AGCS.2016.20150457 |
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| Abstract | 干涉图滤波是InSAR数据处理中的关键步骤之一，滤波结果的优劣会直接影响到相位观测的质量和最终产品精度。本文结合干涉图滤波算法的研究进展，对Goldstein频率域滤波及其经典改进算法进行了系统分析和比较，在此基础上提出了一种基于第二类统计的稳健相干性估计量的Goldstein自适应滤波方法。本文采用模拟数据和Envisat ASAR真实数据与现有方法进行了验证，试验结果表明，新的滤波方法在保持细节和抑制噪声方面优势更加明显。 |
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| AbstractList | 干涉图滤波是InSAR数据处理中的关键步骤之一，滤波结果的优劣会直接影响到相位观测的质量和最终产品精度。本文结合干涉图滤波算法的研究进展，对Goldstein频率域滤波及其经典改进算法进行了系统分析和比较，在此基础上提出了一种基于第二类统计的稳健相干性估计量的Goldstein自适应滤波方法。本文采用模拟数据和Envisat ASAR真实数据与现有方法进行了验证，试验结果表明，新的滤波方法在保持细节和抑制噪声方面优势更加明显。 P237; 干涉图滤波是 InSAR 数据处理中的关键步骤之一，滤波结果的优劣会直接影响到相位观测的质量和最终产品精度。本文结合干涉图滤波算法的研究进展，对 Goldstein 频率域滤波及其经典改进算法进行了系统分析和比较，在此基础上提出了一种基于第二类统计的稳健相干性估计量的Goldstein自适应滤波方法。本文采用模拟数据和 Env i sa t ASAR 真实数据与现有方法进行了验证，试验结果表明，新的滤波方法在保持细节和抑制噪声方面优势更加明显。 |
| Abstract_FL | Interferometric filtering is one of the most important procedures in InSAR data processing as it refers to the quality of phase observations and the final products.A variant under the framework of Goldstein filter is presented in this paper,which is based on the robust coherence estimator from the second kind statistics.Compared with the state-of-the-art,the significant advantage of the new method is that more accurate filtering parameter alpha can be deduced and therefore better performance of the Goldstein filtering can be expected.Experimental results from both simulation and real Envisat ASAR data demonstrate the value of the method. |
| Author | 何秀凤 赵文胜 蒋弥 |
| AuthorAffiliation | 河海大学地球科学与工程学院,江苏 南京,211100 |
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| Author_FL | HE Xiufeng JIANG Mi ZHAO Wensheng |
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| ClassificationCodes | P237 |
| ContentType | Journal Article |
| Copyright | Oct 2016. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.11947/j.AGCS.2016.20150457 |
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| Keywords | Goldstein滤波 相位噪声 第二类统计 coherence 相干系数 second kind statistics Goldstein filter phase noise |
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| Title | 干涉图像第二类统计Goldstein自适应滤波方法 |
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