{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T14:31:59Z","timestamp":1783521119770,"version":"3.55.0"},"reference-count":11,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2017,6,2]],"date-time":"2017-06-02T00:00:00Z","timestamp":1496361600000},"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":["61372186"],"award-info":[{"award-number":["61372186"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61661043"],"award-info":[{"award-number":["61661043"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Natural Science Foundation of Inner Mongolia Autonomous Region","award":["2016MS0606"],"award-info":[{"award-number":["2016MS0606"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The azimuth multichannel imaging scheme with the large receive antenna divided into multiple sub-apertures usually leads to azimuth non-uniform sampling, and echoes from all azimuth channels should be reconstructed based on the signal model before conventional SAR imaging. Unfortunately, the multichannel signal model of a moving target is different from that of a fixed target. This paper analyzes the multichannel signal model of the moving target and the effect of the target velocity on azimuth multichannel reconstruction. Based on the multichannel signal mode of the moving target, a new multichannel signal reconstruction algorithm is proposed. Furthermore, the slant range velocity is estimated by computing signal energy distribution. Simulation results on point targets validate the proposed approach.<\/jats:p>","DOI":"10.3390\/s17061270","type":"journal-article","created":{"date-parts":[[2017,6,2]],"date-time":"2017-06-02T10:20:44Z","timestamp":1496398844000},"page":"1270","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Investigation of Azimuth Multichannel Reconstruction for Moving Targets in High Resolution Wide Swath SAR"],"prefix":"10.3390","volume":"17","author":[{"given":"Weixian","family":"Tan","sequence":"first","affiliation":[{"name":"College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, China"},{"name":"Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Spaceborne Microwave Remote Sensing, Institute of Electronics, Chinese Academy of Sciences (IECAS), Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7720-1183","authenticated-orcid":false,"given":"Pingping","family":"Huang","sequence":"additional","affiliation":[{"name":"College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, China"},{"name":"Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zengshu","family":"Huang","sequence":"additional","affiliation":[{"name":"Electronics &amp; Information Engineering, Beihang University, Beijing 100191, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yaolong","family":"Qi","sequence":"additional","affiliation":[{"name":"Electronics &amp; Information Engineering, Beihang University, Beijing 100191, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kuoye","family":"Han","sequence":"additional","affiliation":[{"name":"China Electronics Technology Group Corporation, Information Science Academy, Beijing 100098, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Currie, A., and Brown, M. (1992, January 12\u201313). Wide-swath SAR. Proceedings of the IEEE Radar and Signal Processing, Brighton, UK.","DOI":"10.1049\/ip-f-2.1992.0016"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"963","DOI":"10.1109\/LGRS.2011.2144563","article-title":"Airborne demonstration of multichannel SAR imaging","volume":"8","author":"Gebert","year":"2011","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_3","unstructured":"Gebert, N. (2009). Multi-Channel Azimuth Processing for High-Resolution Wide-Swath SAR Imaging. [Ph.D. Thesis, University Fridericiana Karlsruhe (TH)]."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1109\/LGRS.2004.840610","article-title":"Generation of wide-swath and high-resolution SAR images from multichannel small spaceborne SAR system","volume":"2","author":"Li","year":"2005","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1049\/iet-rsn:20060040","article-title":"Approach for single channel SAR ground moving target imaging and motion parameter estimation","volume":"1","author":"Zhou","year":"2007","journal-title":"IET Radar Sonar Navig."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1109\/TGRS.2010.2053848","article-title":"Ground moving targets imaging algorithm for synthetic aperture radar","volume":"49","author":"Zhu","year":"2011","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"432","DOI":"10.1109\/TGRS.2009.2027698","article-title":"A new slant-range velocity ambiguity resolving approach of fast moving targets for SAR system","volume":"48","author":"Zhu","year":"2010","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"966","DOI":"10.1109\/TGRS.2012.2204889","article-title":"Robust ground moving-target imaging using deramp-keystone processing","volume":"51","author":"Sun","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2048","DOI":"10.1109\/TGRS.2013.2257799","article-title":"Design considerations of PRF for optimizing GMTI performance in azimuth multichannel SAR systems with HRWS imaging capability","volume":"52","author":"Shu","year":"2014","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"5015","DOI":"10.1109\/JSTARS.2015.2450019","article-title":"Simultaneous High-Resolution Wide-Swath SAR Imaging and Ground Moving Target Indication: Processing Approaches and System Concepts","volume":"8","author":"Baumgartner","year":"2015","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_11","unstructured":"Baumgartner, S.V., and Krieger, G. (2016, January 6\u20139). Experimental Verification of High-Resolution Wide-Swath Moving Target Indication. Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR), Hamburg, Germany."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/6\/1270\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:37:49Z","timestamp":1760207869000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/6\/1270"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,6,2]]},"references-count":11,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2017,6]]}},"alternative-id":["s17061270"],"URL":"https:\/\/doi.org\/10.3390\/s17061270","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,6,2]]}}}