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The polarization bidirectional reflectance function is the key to establish the relation between the polarization states of incidence and backscattering light. For the purpose of obtaining a polarized bidirectional reflectance distribution function (pBRDF) of a realistic, complicated target, it is decomposed as typical geometric surfaces and analytically calculated as the degree of polarization of the backscattering light, using a microfacet model, under conditions in which the scale of the target is far less than the target distance. In an experiment testing several typical geometric models, the results coincided with the theoretical calculation. The degree of polarization varied substantially as the rotation angle of the target changed, but showed little dependence on the size of target. The results have potential in applications discriminating between targets at different spatial orientations.<\/jats:p>","DOI":"10.3390\/rs14236001","type":"journal-article","created":{"date-parts":[[2022,11,28]],"date-time":"2022-11-28T07:01:30Z","timestamp":1669618890000},"page":"6001","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Degree of Polarization Calculation for Laser Backscattering from Typical Geometric Rough Surfaces at Long Distance"],"prefix":"10.3390","volume":"14","author":[{"given":"Shiyang","family":"Shen","sequence":"first","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5900-2719","authenticated-orcid":false,"given":"Xinyuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]},{"given":"Yifan","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]},{"given":"Shilong","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]},{"given":"Jiajie","family":"Fang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]},{"given":"Yihua","family":"Hu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230000, China"},{"name":"Anhui Province Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"816002","DOI":"10.1117\/12.894669","article-title":"Detection and tracking of RC model aircraft in LWIR microgrid polarimeter data","volume":"8160","author":"Ratliff","year":"2011","journal-title":"Polarization Science and Remote Sensing V"},{"key":"ref_2","first-page":"7805","article-title":"Verifications of the nonlinear numerical model and polarization relations of atmospheric acoustic-gravity waves","volume":"7","author":"Gavrilov","year":"2014","journal-title":"Geosci. 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