{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T05:55:06Z","timestamp":1771307706799,"version":"3.50.1"},"reference-count":36,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,28]],"date-time":"2022-08-28T00:00:00Z","timestamp":1661644800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Innovation Team Building Support Program of Beijing Municipal Education Commission","award":["IDHT20190501"],"award-info":[{"award-number":["IDHT20190501"]}]},{"name":"Innovation Team Building Support Program of Beijing Municipal Education Commission","award":["110052972027\/119"],"award-info":[{"award-number":["110052972027\/119"]}]},{"name":"Innovation Team Building Support Program of Beijing Municipal Education Commission","award":["KM202210009004"],"award-info":[{"award-number":["KM202210009004"]}]},{"name":"Innovation Team Building Support Program of Beijing Municipal Education Commission","award":["110051360002"],"award-info":[{"award-number":["110051360002"]}]},{"name":"Innovation Team Building Support Program of Beijing Municipal Education Commission","award":["62131001"],"award-info":[{"award-number":["62131001"]}]},{"name":"Fundamental Research Fund of Beijing Municipal Education Commission","award":["IDHT20190501"],"award-info":[{"award-number":["IDHT20190501"]}]},{"name":"Fundamental Research Fund of Beijing Municipal Education Commission","award":["110052972027\/119"],"award-info":[{"award-number":["110052972027\/119"]}]},{"name":"Fundamental Research Fund of Beijing Municipal Education Commission","award":["KM202210009004"],"award-info":[{"award-number":["KM202210009004"]}]},{"name":"Fundamental Research Fund of Beijing Municipal Education Commission","award":["110051360002"],"award-info":[{"award-number":["110051360002"]}]},{"name":"Fundamental Research Fund of Beijing Municipal Education Commission","award":["62131001"],"award-info":[{"award-number":["62131001"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["IDHT20190501"],"award-info":[{"award-number":["IDHT20190501"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["110052972027\/119"],"award-info":[{"award-number":["110052972027\/119"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["KM202210009004"],"award-info":[{"award-number":["KM202210009004"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["110051360002"],"award-info":[{"award-number":["110051360002"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["62131001"],"award-info":[{"award-number":["62131001"]}]},{"name":"North China University of Technology Research start-up Funds","award":["IDHT20190501"],"award-info":[{"award-number":["IDHT20190501"]}]},{"name":"North China University of Technology Research start-up Funds","award":["110052972027\/119"],"award-info":[{"award-number":["110052972027\/119"]}]},{"name":"North China University of Technology Research start-up Funds","award":["KM202210009004"],"award-info":[{"award-number":["KM202210009004"]}]},{"name":"North China University of Technology Research start-up Funds","award":["110051360002"],"award-info":[{"award-number":["110051360002"]}]},{"name":"North China University of Technology Research start-up Funds","award":["62131001"],"award-info":[{"award-number":["62131001"]}]},{"name":"National Natural Science Foundation of China","award":["IDHT20190501"],"award-info":[{"award-number":["IDHT20190501"]}]},{"name":"National Natural Science Foundation of China","award":["110052972027\/119"],"award-info":[{"award-number":["110052972027\/119"]}]},{"name":"National Natural Science Foundation of China","award":["KM202210009004"],"award-info":[{"award-number":["KM202210009004"]}]},{"name":"National Natural Science Foundation of China","award":["110051360002"],"award-info":[{"award-number":["110051360002"]}]},{"name":"National Natural Science Foundation of China","award":["62131001"],"award-info":[{"award-number":["62131001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Ground-based synthetic aperture radar (GBSAR) has the advantage of retrieving submillimeter deformation of the mine slope by using the differential interferometry technique, which is important for safe production in mining applications. However, the moving vehicle\u2019s defocus\/displaced signal will mask the SAR image of the mining area which affects the accuracy of interference phase extraction and deformation inversion. In order to remove its influence, the moving target can first be refocused and then removed. To our knowledge, there is no GBSAR moving target refocusing method currently. Hence, the refocusing method is necessary. To solve the above problem, this paper proposes a single-channel FMCW-GBSAR moving target refocusing method based on relative speed. Firstly, the FMCW-GBSAR moving target signal model is analyzed, and then the relative speed based signal model is deduced. Based on the model and GBSAR\u2019s feature of incomplete synthetic aperture, the Range Doppler (RD) algorithm is adopted and improved to achieve refocusing using relative speed parameters. The algorithm is controlled by relative speed and squint angle; thus, the refocused target image can be obtained via searching 2D parameters. The proposed method is verified by the synthetic data, which are generated by combining NCUT FMCW GBSAR real data and simulated moving target echo.<\/jats:p>","DOI":"10.3390\/rs14174243","type":"journal-article","created":{"date-parts":[[2022,8,30]],"date-time":"2022-08-30T01:37:55Z","timestamp":1661823475000},"page":"4243","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Ground-Based SAR Moving Target Refocusing Based on Relative Speed for Monitoring Mine Slopes"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7442-4605","authenticated-orcid":false,"given":"Wenjie","family":"Shen","sequence":"first","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]},{"given":"Shuo","family":"Wang","sequence":"additional","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3020-5715","authenticated-orcid":false,"given":"Yun","family":"Lin","sequence":"additional","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]},{"given":"Yang","family":"Li","sequence":"additional","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]},{"given":"Fan","family":"Ding","sequence":"additional","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]},{"given":"Yanping","family":"Wang","sequence":"additional","affiliation":[{"name":"Radar Monitoring Technology Laboratory, School of Information Science and Technology, North China University of Technology, Beijing 100144, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Liu, B., Ge, D., Li, M., Zhang, L., Wang, Y., and Zhang, X. 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