{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T15:52:00Z","timestamp":1784217120244,"version":"3.55.0"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2020,4,20]],"date-time":"2020-04-20T00:00:00Z","timestamp":1587340800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,6,18]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The performance of underwater acoustic communication system is affected seriously by inter-symbol interference caused by multipath effects. Therefore, a novel blind equalization algorithm based on constant modulus algorithm (CMA) and decision-directed least mean square (DD_LMS) is adopted to improve the equalization ability of the system. Firstly, the LMS algorithm is improved by introducing inverse hyperbolic sine function and three adjustment factors to control step-size and the appropriate parameter values are set through the simulation of three adjustment factors. Secondly, the error values of the step-size function are replaced with error expectations to improve the anti-noise performance. Finally, the improved step-size function is introduced into the CMA and DD_LMS algorithm and the difference of the iteration error of adjacent k times is used as the switching condition of the dual mode algorithm. The results show that the algorithm has good equalization and anti-noise performance at both high and low signal-to-noise ratio (SNR), especially at low SNR, its steady-state error is ~10\u00a0dB lower than the traditional CMA and its convergence speed is ~15% higher than the traditional CMA. This algorithm can be used to effectively improve the communication efficiency of the communication system of underwater robots, which has good application value.<\/jats:p>","DOI":"10.1093\/comjnl\/bxaa013","type":"journal-article","created":{"date-parts":[[2020,2,8]],"date-time":"2020-02-08T12:08:58Z","timestamp":1581163738000},"page":"974-981","source":"Crossref","is-referenced-by-count":19,"title":["A Novel CMA+DD_LMS Blind Equalization Algorithm for Underwater Acoustic Communication"],"prefix":"10.1093","volume":"63","author":[{"given":"Jianqiu","family":"Sun","sequence":"first","affiliation":[{"name":"School of Electronic Information Engineering, Changchun University of Science and Technology, No. 7089, Weixing Road, Changchun, 130022, Changchun, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingguang","family":"Li","sequence":"first","affiliation":[{"name":"School of Electronic Information Engineering, Changchun University of Science and Technology, No. 7089, Weixing Road, Changchun, 130022, Changchun, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kang","family":"Chen","sequence":"first","affiliation":[{"name":"School of Electronic Information Engineering, Changchun University of Science and Technology, No. 7089, Weixing Road, Changchun, 130022, Changchun, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Cui","sequence":"first","affiliation":[{"name":"School of Electronic Information Engineering, Changchun University of Science and Technology, No. 7089, Weixing Road, Changchun, 130022, Changchun, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Chu","sequence":"first","affiliation":[{"name":"Department of Communication and Information Systems from the College of Communication Engineering, Jilin University, No. 5372, Nanhu Road, Changchun, 130022, Jilin, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2020,4,20]]},"reference":[{"key":"2020062002534618900_ref1","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1109\/LRA.2016.2617206","article-title":"Highly maneuverable low-cost underwater glider: Design and development","volume":"2","author":"Page","year":"2016","journal-title":"IEEE Robot. 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Eng."}],"container-title":["The Computer Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/comjnl\/article-pdf\/63\/6\/974\/33409345\/bxaa013.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/academic.oup.com\/comjnl\/article-pdf\/63\/6\/974\/33409345\/bxaa013.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,6,20]],"date-time":"2020-06-20T06:55:40Z","timestamp":1592636140000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/comjnl\/article\/63\/6\/974\/5821573"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,20]]},"references-count":15,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2020,4,20]]},"published-print":{"date-parts":[[2020,6,18]]}},"URL":"https:\/\/doi.org\/10.1093\/comjnl\/bxaa013","relation":{},"ISSN":["0010-4620","1460-2067"],"issn-type":[{"value":"0010-4620","type":"print"},{"value":"1460-2067","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2020,6]]},"published":{"date-parts":[[2020,4,20]]}}}