{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T15:20:34Z","timestamp":1775143234219,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2019,5,27]],"date-time":"2019-05-27T00:00:00Z","timestamp":1558915200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["Nos. 41876230,41876227,41376192"],"award-info":[{"award-number":["Nos. 41876230,41876227,41376192"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the Chinese Polar Environmental Comprehensive Investigation and Assessment Programs","award":["CHIANRE 2017-01-01\/ CHIANRE2017-04-01\/ CHIANRE2017-04-03"],"award-info":[{"award-number":["CHIANRE 2017-01-01\/ CHIANRE2017-04-01\/ CHIANRE2017-04-03"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>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\u2019s 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.<\/jats:p>","DOI":"10.3390\/rs11101253","type":"journal-article","created":{"date-parts":[[2019,5,27]],"date-time":"2019-05-27T11:19:27Z","timestamp":1558955967000},"page":"1253","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9631-6373","authenticated-orcid":false,"given":"Siyuan","family":"Cheng","sequence":"first","affiliation":[{"name":"College of Geo-Exploration Science and Technology, Jilin University, Changchun 130012, China"},{"name":"Polar Research Institute of China, Shanghai 200219, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6660-6780","authenticated-orcid":false,"given":"Sixin","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Geo-Exploration Science and Technology, Jilin University, Changchun 130012, China"}]},{"given":"Jingxue","family":"Guo","sequence":"additional","affiliation":[{"name":"Polar Research Institute of China, Shanghai 200219, China"}]},{"given":"Kun","family":"Luo","sequence":"additional","affiliation":[{"name":"College of Geo-Exploration Science and Technology, Jilin University, Changchun 130012, China"},{"name":"Polar Research Institute of China, Shanghai 200219, China"}]},{"given":"Ling","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Geo-Exploration Science and Technology, Jilin University, Changchun 130012, China"}]},{"given":"Xueyuan","family":"Tang","sequence":"additional","affiliation":[{"name":"Polar Research Institute of China, Shanghai 200219, China"}]}],"member":"1968","published-online":{"date-parts":[[2019,5,27]]},"reference":[{"key":"ref_1","first-page":"85","article-title":"Present process of glacier and global climatic and environmental change","volume":"4","author":"Qin","year":"1997","journal-title":"Earth Sci. 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