Comparision of Methods for Polarimetric SAR Tomography with Small Number of Baselines in Forested Areas

LIANG Lei; ZHOU Chenghu; LI Xinwu; GAO Xizhang; WU Wenjin

doi:10.1049/cje.2019.06.026

Volume 28 Issue 5

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LIANG Lei, ZHOU Chenghu, LI Xinwu, GAO Xizhang, WU Wenjin. Comparision of Methods for Polarimetric SAR Tomography with Small Number of Baselines in Forested Areas[J]. Chinese Journal of Electronics, 2019, 28(5): 1073-1079. doi: 10.1049/cje.2019.06.026

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LIANG Lei, ZHOU Chenghu, LI Xinwu, GAO Xizhang, WU Wenjin. Comparision of Methods for Polarimetric SAR Tomography with Small Number of Baselines in Forested Areas[J]. Chinese Journal of Electronics, 2019, 28(5): 1073-1079. doi: 10.1049/cje.2019.06.026

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Comparision of Methods for Polarimetric SAR Tomography with Small Number of Baselines in Forested Areas

doi: 10.1049/cje.2019.06.026

1.
State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
2.
Key Laboratory of Digital Earth Sciences, Institute of Remote Sensing and Digital Earth RADI, Chinese Academy of Sciences, Beijing 100094, China

Funds: This work is supported by the National Natural Science Foundation of China (No.41571360), China Postdoctoral Science Foundation (No.2016M601110), and the Young Scientists Fund of National Natural Science Foundation of China (No.41601361).

More Information

Corresponding author: LI Xinwu (corresponding author) was born in 1973.He received the Ph.D.degree in cartography and geographical information system from the Institute of Remote Sensing and Digital Earth,CAS,China.He is a professor of the Institute of Remote Sensing and Digital Earth,CAS.His research interests include microwave remote sensing,global environmental change and urban environmental remote sensing.(Email:lixw@radi.ac.cn)
Received Date: 2016-09-26
Rev Recd Date: 2017-12-05
Publish Date: 2019-09-10

Abstract

Abstract

Synthetic aperture radar Tomography (TomoSAR) provides scene reflectivity estimation of vegetation along elevation coordinates. However, the more multi-baselines acquisition, the longer the time span of acquisition, which will result in serious temporal decorrelation in forested area. In this way, we expect to use as smaller number of baselines as possible to obtain high estimation accuracy in elevation direction. We thus investigate the performance of Polarimetric SAR tomography (Pol-TomoSAR) with small number of baselines in forested areas. The results show that compressive sensingbased Pol-TomoSAR has higher estimation accuracy in elevation direction than conventional Pol-TomoSAR with small number of baselines.
- Synthetic aperture radar (SAR),
- Polarimetric SAR,
- SAR tomography,
- Compressive sensing

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References(25)

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