利用相干信息优化SAR干涉图

遥感信息 Pub Date : 1997-08-03 DOI:10.1109/IGARSS.1997.609035

C. Yonezawa, S. Takeuchi

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引用次数: 4

摘要

验证了相干信息在合成孔径雷达干涉图优化中的适用性。本研究的优化目的是提高SAR干涉图中地形条纹的平滑度，从而获得更好的解包裹条纹。相干信息计算为两个SAR复合数据之间的复相关系数。为了优化干涉图，在两个数据之间初始配准位置附近的3/spl次/5窗口内搜索最大相干值，然后从具有最大相干性的像素对中获得相位差。针对多个SAR复杂数据对，尝试了该优化方法。在一些对中发现了优化的效果。结果表明，优化过程中相干性线索的增加是提高平滑度的重要因素之一。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Optimization of SAR interferogram by using coherence information

The authors tested the applicability of coherence information for optimizing SAR (synthetic aperture radar) interferogram. The purpose of the optimization in this study is to improve the smoothness of the topographic fringe in a SAR interferogram, which results in better fringe for unwrapping. Coherence information was computed as the complex correlation coefficient between two SAR complex data. To optimize the interferogram, the maximum coherence value was searched in 3/spl times/5 window around the initial registered position between two data and then the phase difference was obtained from the pixel pair that has the maximum coherence. This optimizing method was attempted for several SAR complex data pairs. The effect of the optimization was found in some pairs. It was found that the increase of the coherence clue to the optimization was one of the important factors for the improvement of the smoothness.

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来源期刊

遥感信息

自引率

0.00%

发文量

3984

期刊介绍： Remote Sensing Information is a bimonthly academic journal supervised by the Ministry of Natural Resources of the People's Republic of China and sponsored by China Academy of Surveying and Mapping Science. Since its inception in 1986, it has been one of the authoritative journals in the field of remote sensing in China.In 2014, it was recognised as one of the first batch of national academic journals, and was awarded the honours of Core Journals of China Science Citation Database, Chinese Core Journals, and Core Journals of Science and Technology of China. The journal won the Excellence Award (First Prize) of the National Excellent Surveying, Mapping and Geographic Information Journal Award in 2011 and 2017 respectively. Remote Sensing Information is dedicated to reporting the cutting-edge theoretical and applied results of remote sensing science and technology, promoting academic exchanges at home and abroad, and promoting the application of remote sensing science and technology and industrial development. The journal adheres to the principles of openness, fairness and professionalism, abides by the anonymous review system of peer experts, and has good social credibility. The main columns include Review, Theoretical Research, Innovative Applications, Special Reports, International News, Famous Experts' Forum, Geographic National Condition Monitoring, etc., covering various fields such as surveying and mapping, forestry, agriculture, geology, meteorology, ocean, environment, national defence and so on. Remote Sensing Information aims to provide a high-level academic exchange platform for experts and scholars in the field of remote sensing at home and abroad, to enhance academic influence, and to play a role in promoting and supporting the protection of natural resources, green technology innovation, and the construction of ecological civilisation.