{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T09:45:03Z","timestamp":1753868703788,"version":"3.41.2"},"reference-count":24,"publisher":"Wiley","issue":"23","license":[{"start":{"date-parts":[[2018,4,27]],"date-time":"2018-04-27T00:00:00Z","timestamp":1524787200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100013076","name":"National Major Science and Technology Projects of China","doi-asserted-by":"publisher","award":["GFZX0301040115"],"award-info":[{"award-number":["GFZX0301040115"]}],"id":[{"id":"10.13039\/501100013076","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61571188","61301094","61771393"],"award-info":[{"award-number":["61571188","61301094","61771393"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Concurrency and Computation"],"published-print":{"date-parts":[[2019,12,10]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Passive localization method has a wider applicable prospect as a rising localization resort with well flexibility. The acquisition of phase difference changing rate is a very practical problem in passive localization for the way how to get the phase difference, and a better error precision directly affects the accuracy of the localization. Firstly, based on the analysis of the positioning principle of phase difference changing rate, it studies the characteristics of phase difference changing rate and proposes a novel resolving phase ambiguity algorithm based on a double baselines system cosine theorem (DBSCT), which can eliminate the phase difference ambiguity efficiently. Secondly, it studies two typical methods to extract the high\u2010precision phase difference changing rate from the unambiguity phase difference, namely, difference algorithm and Kalman algorithm. Finally, it compares the Kalman algorithm with the difference algorithm through computer simulation. Simulation results show that the Kalman algorithm can efficiently smoothen the phase difference data and suppress the measurement noise to achieve a high positioning accuracy. Simulation results also show that with a certain phase difference measurement accuracy, the phase difference rate accuracy extracted by the Kalman algorithm is higher than that we require. Therefore, we can appropriately relax the phase difference measurement accuracy requirements to achieve the same positioning accuracy. So, it has a great application value.<\/jats:p>","DOI":"10.1002\/cpe.4492","type":"journal-article","created":{"date-parts":[[2018,4,27]],"date-time":"2018-04-27T10:33:35Z","timestamp":1524825215000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Research on high\u2010precision passive localization based on phase difference changing rate"],"prefix":"10.1002","volume":"31","author":[{"given":"Taoyun","family":"Zhou","sequence":"first","affiliation":[{"name":"School of Electronics and Information Northwestern Polytechnical University  Xi'an China"},{"name":"School of Information Hunan University of Humanities, Science and Technology  Loudi China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8994-6964","authenticated-orcid":false,"given":"Yun","family":"Cheng","sequence":"additional","affiliation":[{"name":"School of Information Hunan University of Humanities, Science and Technology  Loudi China"}]},{"given":"Baowang","family":"Lian","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Northwestern Polytechnical University  Xi'an China"}]},{"given":"Bibi","family":"Irfana","sequence":"additional","affiliation":[{"name":"School of Computer Science and Technology Xidian University  Xi'an China"}]},{"given":"Hongwei","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Northwestern Polytechnical University  Xi'an China"}]}],"member":"311","published-online":{"date-parts":[[2018,4,27]]},"reference":[{"volume-title":"Single Active Base Passive Location Technology","year":"1996","author":"Chongkang S","key":"e_1_2_7_2_1"},{"key":"e_1_2_7_3_1","doi-asserted-by":"crossref","unstructured":"ZhouT ChengY WuT.Single observer passive location using phase difference rate. 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