Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition
In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying the bedrock under the ice sheet and ice information within the ice sheet. Because of the low conductivity of ice and the relatively uniform composition of ice sheets in the polar regions, ic...
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ftdoajarticles:oai:doaj.org/article:5f20367d4a7b4e9cb805fdc84598b272 2023-05-15T13:47:49+02:00 Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition Siyuan Cheng Sixin Liu Jingxue Guo Kun Luo Ling Zhang Xueyuan Tang 2019-05-01T00:00:00Z https://doi.org/10.3390/rs11101253 https://doaj.org/article/5f20367d4a7b4e9cb805fdc84598b272 EN eng MDPI AG https://www.mdpi.com/2072-4292/11/10/1253 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11101253 https://doaj.org/article/5f20367d4a7b4e9cb805fdc84598b272 Remote Sensing, Vol 11, Iss 10, p 1253 (2019) ice-penetrating radar VMD noise reduction forward simulation Antarctic Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11101253 2022-12-31T16:10:55Z In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying the bedrock under the ice sheet and ice information within the ice sheet. Because of the low conductivity of ice and the relatively uniform composition of ice sheets in the polar regions, ice-penetrating radar is able to obtain deeper and more abundant data than other geophysical methods. However, it is still necessary to suppress the noise in radar data to obtain more accurate and plentiful effective information. In this paper, the entirely non-recursive Variational Mode Decomposition (VMD) is applied to the data noise reduction of ice-penetrating radar. VMD is a decomposition method of adaptive and quasi-orthogonal signals, which decomposes airborne radar data into multiple frequency-limited quasi-orthogonal Intrinsic Mode Functions (IMFs). The IMFs containing noise are then removed according to the information distribution in the IMF’s components and the remaining IMFs are reconstructed. This paper employs this method to process the real ice-penetrating radar data, which effectively eliminates the interference noise in the data, improves the signal-to-noise ratio and obtains the clearer inner layer structure of ice. It is verified that the method can be applied to the noise reduction processing of polar ice-penetrating radar data very well, which provides a better basis for data interpretation. At last, we present fine ice structure within the ice sheet based on VMD denoised radar profile. Article in Journal/Newspaper Antarc* Antarctic Arctic Ice Sheet Directory of Open Access Journals: DOAJ Articles Arctic Antarctic Remote Sensing 11 10 1253 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice-penetrating radar VMD noise reduction forward simulation Antarctic Science Q |
spellingShingle |
ice-penetrating radar VMD noise reduction forward simulation Antarctic Science Q Siyuan Cheng Sixin Liu Jingxue Guo Kun Luo Ling Zhang Xueyuan Tang Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
topic_facet |
ice-penetrating radar VMD noise reduction forward simulation Antarctic Science Q |
description |
In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying the bedrock under the ice sheet and ice information within the ice sheet. Because of the low conductivity of ice and the relatively uniform composition of ice sheets in the polar regions, ice-penetrating radar is able to obtain deeper and more abundant data than other geophysical methods. However, it is still necessary to suppress the noise in radar data to obtain more accurate and plentiful effective information. In this paper, the entirely non-recursive Variational Mode Decomposition (VMD) is applied to the data noise reduction of ice-penetrating radar. VMD is a decomposition method of adaptive and quasi-orthogonal signals, which decomposes airborne radar data into multiple frequency-limited quasi-orthogonal Intrinsic Mode Functions (IMFs). The IMFs containing noise are then removed according to the information distribution in the IMF’s components and the remaining IMFs are reconstructed. This paper employs this method to process the real ice-penetrating radar data, which effectively eliminates the interference noise in the data, improves the signal-to-noise ratio and obtains the clearer inner layer structure of ice. It is verified that the method can be applied to the noise reduction processing of polar ice-penetrating radar data very well, which provides a better basis for data interpretation. At last, we present fine ice structure within the ice sheet based on VMD denoised radar profile. |
format |
Article in Journal/Newspaper |
author |
Siyuan Cheng Sixin Liu Jingxue Guo Kun Luo Ling Zhang Xueyuan Tang |
author_facet |
Siyuan Cheng Sixin Liu Jingxue Guo Kun Luo Ling Zhang Xueyuan Tang |
author_sort |
Siyuan Cheng |
title |
Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
title_short |
Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
title_full |
Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
title_fullStr |
Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
title_full_unstemmed |
Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition |
title_sort |
data processing and interpretation of antarctic ice-penetrating radar based on variational mode decomposition |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11101253 https://doaj.org/article/5f20367d4a7b4e9cb805fdc84598b272 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Arctic Ice Sheet |
genre_facet |
Antarc* Antarctic Arctic Ice Sheet |
op_source |
Remote Sensing, Vol 11, Iss 10, p 1253 (2019) |
op_relation |
https://www.mdpi.com/2072-4292/11/10/1253 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11101253 https://doaj.org/article/5f20367d4a7b4e9cb805fdc84598b272 |
op_doi |
https://doi.org/10.3390/rs11101253 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
10 |
container_start_page |
1253 |
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1766247919239823360 |