{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:57:37Z","timestamp":1760144257261,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,3,21]],"date-time":"2024-03-21T00:00:00Z","timestamp":1710979200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Key Laboratory of Nuclear Reactor System Design Technology","award":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"],"award-info":[{"award-number":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"]}]},{"DOI":"10.13039\/100012842","name":"Nuclear Power Institute of China","doi-asserted-by":"publisher","award":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"],"award-info":[{"award-number":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"]}],"id":[{"id":"10.13039\/100012842","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Key Research and Development Program","award":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"],"award-info":[{"award-number":["KFKT-05-FW-HT-20220019","SCU&NPIC-LHCX-20","2023YFB4603501"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The acoustic tomography (AT) velocity field reconstruction technique has become a research hotspot in recent years due to its noninvasive nature, high accuracy, and real-time measurement advantages. However, most of the existing studies are limited to the reconstruction of the velocity field in a rectangular area, and there are very few studies on a circular area, mainly because the layout of acoustic transducers, selection of acoustic paths, and division of measured regions are more difficult in a circular area than in a rectangular area. Therefore, based on AT and using the reconstruction algorithm of the Markov function and singular value decomposition (MK-SVD), this paper proposes a measured regional division optimization algorithm for velocity field reconstruction in a circular area. First, an acoustic path distribution based on the multipath effect is designed to solve the problem of the limited emission angle of the acoustic transducer. On this basis, this paper proposes an adaptive optimization algorithm for measurement area division based on multiple sub-objectives. The steps are as follows: first, two optimization objectives, the condition number of coefficient matrix and the uniformity of acoustic path distribution, were designed. Then, the weights of each sub-objective are calculated using the coefficient of variation (CV). Finally, the measured regional division is optimized based on particle swarm optimization (PSO). The reconstruction effect of the algorithm and the anti-interference ability are verified through the reconstruction experiments of the model velocity field and the simulated velocity field.<\/jats:p>","DOI":"10.3390\/s24062008","type":"journal-article","created":{"date-parts":[[2024,3,21]],"date-time":"2024-03-21T09:13:08Z","timestamp":1711012388000},"page":"2008","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Measured Regional Division Optimization for Acoustic Tomography Velocity Field Reconstruction in a Circular Area"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-1392-9520","authenticated-orcid":false,"given":"Yixiao","family":"Chen","sequence":"first","affiliation":[{"name":"College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinzhi","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jialiang","family":"Zhu","sequence":"additional","affiliation":[{"name":"College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China"},{"name":"Key Laboratory of Nuclear Reactor System Design Technology, Nuclear Power Institute of China, Chengdu 610213, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenlong","family":"Dong","sequence":"additional","affiliation":[{"name":"College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China"},{"name":"Key Laboratory of Nuclear Reactor System Design Technology, Nuclear Power Institute of China, Chengdu 610213, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Xu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Nuclear Reactor System Design Technology, Nuclear Power Institute of China, Chengdu 610213, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hailin","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Nuclear Reactor System Design Technology, Nuclear Power Institute of China, Chengdu 610213, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,21]]},"reference":[{"key":"ref_1","first-page":"15","article-title":"Synthetic structure of industrial plastics","volume":"Volume 3","author":"Peters","year":"1964","journal-title":"Plastics"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.measurement.2015.04.022","article-title":"Visualisation and measurement of high-speed pulsating and continuous water jets","volume":"72","author":"Zelenak","year":"2015","journal-title":"Measurement"},{"key":"ref_3","first-page":"8887","article-title":"Comparative study of conventional and MEMS flow meters","volume":"975","author":"Mulik","year":"2015","journal-title":"Int. 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