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Therefore, this paper proposes a virtual time-inverse OFDM underwater acoustic channel estimation algorithm based on compressed sensing. The algorithm extracts the detection signal, constructs a sparse signal model of the delay-Doppler shift, and then performs preestimation of the underwater acoustic channel based on the compressed sensing theory. Then, by predicting the timing of the underwater acoustic channel and convolving with the received signal, the algorithm improves the focusing effect better. Experimental simulations show that compared with LS and OMP algorithms, the algorithm can accurately recover channel information from a small number of observations, reduce the bit error rate by 10%, and improve the accuracy of channel estimation and the time-inverse OFDM performance of virtual time.<\/jats:p>","DOI":"10.1155\/2020\/5910585","type":"journal-article","created":{"date-parts":[[2020,7,26]],"date-time":"2020-07-26T23:31:21Z","timestamp":1595806281000},"page":"1-12","source":"Crossref","is-referenced-by-count":6,"title":["Virtual Time-Inverse OFDM Underwater Acoustic Channel Estimation Algorithm Based on Compressed Sensing"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1477-3712","authenticated-orcid":true,"given":"Yun","family":"Li","sequence":"first","affiliation":[{"name":"College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin Guangxi 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xihua","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin Guangxi 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanlin","family":"Sun","sequence":"additional","affiliation":[{"name":"College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin Guangxi 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhicheng","family":"Tan","sequence":"additional","affiliation":[{"name":"College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin Guangxi 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xing","family":"Yao","sequence":"additional","affiliation":[{"name":"College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin Guangxi 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2016.7470947"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/joe.2015.2398731"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1177\/155014775363724"},{"issue":"1","key":"4","volume":"32","year":"2011","journal-title":"Journal of Harbin Engineering University"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2015.7321977"},{"year":"2012","key":"6"},{"issue":"4","key":"7","first-page":"90","volume":"31","year":"2011","journal-title":"Journal of Hangzhou Dianzi University"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/iccsn.2009.23"},{"key":"9","first-page":"1206","volume":"9","year":"2009","journal-title":"Journal of Ordnance Engineering"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/vtcfall.2012.6399176"},{"key":"11","first-page":"6482","volume":"24","year":"2008","journal-title":"Science Technology and Engineering"},{"key":"12","first-page":"393","volume":"5","year":"2006","journal-title":"Journal of Acoustics"},{"year":"2013","key":"13"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1109\/mcom.2010.5621984"},{"key":"15","first-page":"227","volume":"6","year":"2015","journal-title":"Acta Physica Sinica"},{"key":"16","first-page":"589","volume":"6","year":"1999","journal-title":"Acta Acoustica Sinica"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2015.2427806"}],"container-title":["Journal of Sensors"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2020\/5910585.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2020\/5910585.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2020\/5910585.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,7,26]],"date-time":"2020-07-26T23:31:30Z","timestamp":1595806290000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/js\/2020\/5910585\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7,26]]},"references-count":17,"alternative-id":["5910585","5910585"],"URL":"https:\/\/doi.org\/10.1155\/2020\/5910585","relation":{},"ISSN":["1687-725X","1687-7268"],"issn-type":[{"type":"print","value":"1687-725X"},{"type":"electronic","value":"1687-7268"}],"subject":[],"published":{"date-parts":[[2020,7,26]]}}}