{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T03:05:14Z","timestamp":1760151914956,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004608","name":"Natural Science Foundation of Jiangsu Province","doi-asserted-by":"publisher","award":["BK20190143","JSGG20190823094603691","62001436"],"award-info":[{"award-number":["BK20190143","JSGG20190823094603691","62001436"]}],"id":[{"id":"10.13039\/501100004608","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Natural Science Foundation of China","award":["BK20190143","JSGG20190823094603691","62001436"],"award-info":[{"award-number":["BK20190143","JSGG20190823094603691","62001436"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Multichannel SAR systems have grown rapidly over the past decade due to their powerful high-resolution and wide-swath (HRWS) capabilities. Because spatially separated channels also have the potential to suppress jamming, dual-channel cancellation is a general method that is effective regardless of the type of jamming signal. In this paper, the principle of dual-channel cancellation (DCC) is introduced, and several practical problems using DCC are also discussed. Moreover, this paper emphasizes interferometric phase estimation, which is the key to DCC. If the jamming-to-signal ratio (JSR) is high, the interferometric phase can be estimated accurately from the interferometry of two channel signals, but estimation becomes rather difficult when the JSR decreases. To solve the problem of interferometric phase estimation under a low JSR, a novel interferometric phase estimation method using cosine similarity is proposed in this paper. L-band airborne dual-channel SAR is performed to investigate the applicability of the method. The results not only prove that cosine similarity is an effective method for interferometric phase estimation, but also demonstrate the potential of DCC in the SAR anti-jamming processing.<\/jats:p>","DOI":"10.3390\/s22239356","type":"journal-article","created":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T03:32:25Z","timestamp":1669865545000},"page":"9356","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Novel Method for Interferometric Phase Estimation in Dual-Channel Cancellation"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7281-2831","authenticated-orcid":false,"given":"Long","family":"Huang","sequence":"first","affiliation":[{"name":"Nanjing Research Institute of Electronic Technology, Nanjing 210039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aifang","family":"Liu","sequence":"additional","affiliation":[{"name":"Nanjing Research Institute of Electronic Technology, Nanjing 210039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zuzhen","family":"Huang","sequence":"additional","affiliation":[{"name":"Nanjing Research Institute of Electronic Technology, Nanjing 210039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hui","family":"Xu","sequence":"additional","affiliation":[{"name":"Nanjing Research Institute of Electronic Technology, Nanjing 210039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0692-6467","authenticated-orcid":false,"given":"Dong","family":"Han","sequence":"additional","affiliation":[{"name":"Nanjing Research Institute of Electronic Technology, Nanjing 210039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1109\/LGRS.2014.2345091","article-title":"The Influence of Rebound Jamming on SAR GMTI","volume":"12","author":"Huang","year":"2015","journal-title":"IEEE Geosci. 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