{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T16:21:07Z","timestamp":1772554867442,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2023,7,27]],"date-time":"2023-07-27T00:00:00Z","timestamp":1690416000000},"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":["61072092"],"award-info":[{"award-number":["61072092"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In existing imaging algorithms for wide-beam multiple-receiver synthetic aperture sonar (SAS) systems, the double-square-root (DSR) range history of each receiver is generally converted into the sum of a single-square-root (SSR) range history and an error term using displaced phase center aperture (DPCA) approximation. Therefore, before imaging, each receiver\u2019s error term needs to be individually compensated in the azimuth frequency domain, which is computationally expensive. As a result, a novel wide-beam multiple-receiver SAS system algorithm with low complexity and high precision is suggested. First, the translation relationship between the range histories of the reference receiver and other receivers is used to derive an SSR approximation range history that takes into account the azimuth variance of the non-stop-hop-stop time while ignoring differential range curvature (DRC) between the range histories from different receivers. Then, using the principle of stationary phase (POSP), the two-dimensional (2-D) spectrum of the point target is obtained. Finally, the multiple-receiver data are transformed into monostatic SAS-equivalent data for imaging after phase correction, time delay correction, and azimuth reconstruction. The range-Doppler (RD) algorithm is used as an example to explain the specific steps of the proposed approach. Simulation data and ChinSAS data experiments verify that the proposed algorithm achieves an imaging performance that is comparable to that of the existing wide-beam algorithm, but with much higher computational efficiency, making it suitable for real-time imaging.<\/jats:p>","DOI":"10.3390\/rs15153745","type":"journal-article","created":{"date-parts":[[2023,7,28]],"date-time":"2023-07-28T02:08:00Z","timestamp":1690510080000},"page":"3745","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["A Novel Imaging Algorithm for Wide-Beam Multiple-Receiver Synthetic Aperture Sonar Systems"],"prefix":"10.3390","volume":"15","author":[{"given":"Jiafeng","family":"Zhang","sequence":"first","affiliation":[{"name":"Institute of Electronic Engineering, Naval University of Engineering, Wuhan 430000, China"}]},{"given":"Guangli","family":"Cheng","sequence":"additional","affiliation":[{"name":"Institute of Electronic Engineering, Naval University of Engineering, Wuhan 430000, China"}]},{"given":"Jinsong","family":"Tang","sequence":"additional","affiliation":[{"name":"Institute of Electronic Engineering, Naval University of Engineering, Wuhan 430000, China"}]},{"given":"Zhimin","family":"Xie","sequence":"additional","affiliation":[{"name":"Military Marine Environment Construction Office, Beijing 100161, China"}]},{"given":"Haoran","family":"Wu","sequence":"additional","affiliation":[{"name":"Institute of Electronic Engineering, Naval University of Engineering, Wuhan 430000, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1109\/JOE.2009.2020853","article-title":"Synthetic Aperture Sonar: A Review of Current Status","volume":"34","author":"Hayes","year":"2009","journal-title":"IEEE J. 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