{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T11:08:17Z","timestamp":1773486497723,"version":"3.50.1"},"reference-count":18,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2014,12,11]],"date-time":"2014-12-11T00:00:00Z","timestamp":1418256000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The Inertial Navigation System (INS) is now widely applied in many navigation and mobile mapping applications due to its high sampling rates, high accuracy in short-term cases, and no limitations caused by interference or signal obstructions. In addition, the INS can continuously provide the position, velocity and attitude of a vehicle. Conversely, the disadvantage of the stand-alone INS is that its accuracy degrades rapidly with time because of the accumulations of systematic errors and noises from accelerometers and gyroscopes. Therefore, this research aims to implement an integrated system with specific 3D position updates using non-GPS derived references to aid a tactical inertial navigator to provide seamless navigation solutions in the specific area without Global Positioning System (GPS) signals. An Extended Kalman Filter (EKF) is applied as the core estimator to provide superior performance and output the navigation solutions in real-time. The INS is updated by position from references such as the digital map, land mark, Digital Terrain Model (DTM) as well as waypoint to improve navigation accuracy in the long-term. In order to evaluate the performance of the proposed algorithm, field tests including land scenario in freeway and airborne scenario with an unmanned aerial test platform have been conducted. The preliminary results demonstrate that the proposed algorithm with non-GPS derived references aiding from digital map and waypoint for onboard aerial camera trigger to provide uninterrupted navigation solutions and better performance which can achieve the meter-level accuracy without GPS aiding for land and aerial scenarios, respectively.     <\/jats:p>","DOI":"10.3390\/rs61212511","type":"journal-article","created":{"date-parts":[[2014,12,11]],"date-time":"2014-12-11T10:53:38Z","timestamp":1418295218000},"page":"12511-12526","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The Performance Analysis of the Tactical Inertial Navigator Aided by Non-GPS Derived References"],"prefix":"10.3390","volume":"6","author":[{"given":"Kai-Wei","family":"Chiang","sequence":"first","affiliation":[{"name":"Department of Geomatics, National Cheng-Kung University, No.1, University Road, Tainan 701, Taiwan"}]},{"given":"Cheng-An","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Geomatics, National Cheng-Kung University, No.1, University Road, Tainan 701, Taiwan"}]},{"given":"Thanh-Trung","family":"Duong","sequence":"additional","affiliation":[{"name":"Department of Geomatics, National Cheng-Kung University, No.1, University Road, Tainan 701, Taiwan"}]}],"member":"1968","published-online":{"date-parts":[[2014,12,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1016\/j.asoc.2007.05.010","article-title":"An intelligent navigator for seamless INS\/GPS integrated land vehicle navigation applications","volume":"8","author":"Chiang","year":"2008","journal-title":"Appl. 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