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The main objective of this study was to present a preliminary evaluation of GF-3 quad-polarized SAR imagery for protected wetland classification. Four scenes of GF-3 quad-polarized SAR imageries were collected in this study and analyzed systematically. Besides, the GF-2 optical imagery and in situ survey results were also collocated as reference data. It was verified that the polarized features including double bounce scattering component <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:msub><mml:mrow><mml:mi>P<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>d<\/mml:mi><mml:mi>b<\/mml:mi><mml:mi>l<\/mml:mi><\/mml:mrow><\/mml:msub><\/mml:mrow><\/mml:math>, odd bounce scattering component <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:msub><mml:mrow><mml:mi>P<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>o<\/mml:mi><mml:mi>d<\/mml:mi><mml:mi>d<\/mml:mi><\/mml:mrow><\/mml:msub><\/mml:mrow><\/mml:math>, and volume scattering component <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mrow><mml:msub><mml:mrow><mml:mi>P<\/mml:mi><\/mml:mrow><mml:mrow><mml:mi>v<\/mml:mi><mml:mi>o<\/mml:mi><mml:mi>l<\/mml:mi><\/mml:mrow><\/mml:msub><\/mml:mrow><\/mml:math> from Freeman decomposition algorithm were well applied in distinguishing typical coverage of Longbao protected plateau wetland. In consideration of robustness of classifier, the method of Maximum Likelihood Classification was investigated for classification based on selected polarized features. The Kappa coefficient and overall accuracy of classification mapping are 0.75 and 82.16%, respectively, which revealed that the GF-3 quad-polarized SAR can provide a satisfying mapping for classification of Longbao protected plateau wetland.<\/jats:p>","DOI":"10.1155\/2019\/8789473","type":"journal-article","created":{"date-parts":[[2019,8,20]],"date-time":"2019-08-20T19:32:45Z","timestamp":1566329565000},"page":"1-7","source":"Crossref","is-referenced-by-count":5,"title":["Preliminary Evaluation of Gaofen-3 Quad-Polarized SAR Imagery for Longbao Protected Plateau Wetland Reserve"],"prefix":"10.1155","volume":"2019","author":[{"given":"Qiufang","family":"Wei","sequence":"first","affiliation":[{"name":"Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"Laboratory of Target Microwave Properties, Deqing Academy of Satellite Applications, Deqing, Zhejiang Province, 313200, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7378-8394","authenticated-orcid":true,"given":"Yun","family":"Shao","sequence":"additional","affiliation":[{"name":"Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"Laboratory of Target Microwave Properties, Deqing Academy of Satellite Applications, Deqing, Zhejiang Province, 313200, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9412-0596","authenticated-orcid":true,"given":"Xiaochen","family":"Wang","sequence":"additional","affiliation":[{"name":"Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"Laboratory of Target Microwave Properties, Deqing Academy of Satellite Applications, Deqing, Zhejiang Province, 313200, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ecolind.2013.02.013"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ocecoaman.2009.10.008"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1007\/s11852-014-0350-z"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/36.868884"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1080\/014311699211903"},{"issue":"3","key":"6","first-page":"1019","volume":"8","year":"2015","journal-title":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.ecss.2011.10.009"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.2112\/SI75-160.1"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/LGRS.2015.2509518"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1080\/01431161.2017.1363437"},{"issue":"1","key":"12","volume":"10","year":"2018","journal-title":"Remote Sensing"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2016.2631632"},{"issue":"3","key":"14","volume":"18","year":"2017","journal-title":"Aerospace China"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.3390\/s18020403"},{"issue":"6, article no. 1898","key":"16","first-page":"431","volume":"18","year":"2018","journal-title":"Sensors"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1127\/1432-8364\/20\/0126"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1080\/19479832.2013.870933"}],"container-title":["Journal of Sensors"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2019\/8789473.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2019\/8789473.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2019\/8789473.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,9,21]],"date-time":"2019-09-21T04:37:56Z","timestamp":1569040676000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/js\/2019\/8789473\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8,20]]},"references-count":17,"alternative-id":["8789473","8789473"],"URL":"https:\/\/doi.org\/10.1155\/2019\/8789473","relation":{},"ISSN":["1687-725X","1687-7268"],"issn-type":[{"type":"print","value":"1687-725X"},{"type":"electronic","value":"1687-7268"}],"subject":[],"published":{"date-parts":[[2019,8,20]]}}}