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Technical University of Crete
Technical University of Crete
EN
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| URI | http://purl.tuc.gr/dl/dias/C55DB185-F66F-4FA8-8BE4-DFA947DEDF27 | - |
| Identifier | https://doi.org/10.3390/rs12071080 | - |
| Identifier | https://www.mdpi.com/2072-4292/12/7/1080/htm | - |
| Language | en | - |
| Extent | 11 pages | en |
| Extent | 1,53 megabytes | en |
| Title | A novel UAV-assisted positioning system for GNSS-denied environments | en |
| Creator | Partsinevelos Panagiotis | en |
| Creator | Παρτσινεβελος Παναγιωτης | el |
| Creator | Chatziparaschis Dimitrios | en |
| Creator | Χατζηπαρασχης Δημητριος | el |
| Creator | Trigakis Dimitrios | en |
| Creator | Τριγκακης Δημητριος | el |
| Creator | Tripolitsiotis Achilleas | en |
| Creator | Τριπολιτσιωτης Αχιλλεας | el |
| Publisher | MDPI | en |
| Content Summary | Global Navigation Satellite Systems (GNSS) are extensively used for location-based services, civil and military applications, precise time reference, atmosphere sensing, and other applications. In surveying and mapping applications, GNSS provides precise three-dimensional positioning all over the globe, day and night, under almost any weather conditions. The visibility of the ground receiver to GNSS satellites constitutes the main driver of accuracy for GNSS positioning. When this visibility is obstructed by buildings, high vegetation, or steep slopes, the accuracy is degraded and alternative techniques have to be assumed. In this study, a novel concept of using an unmanned aerial system (UAS) as an intermediate means for improving the accuracy of ground positioning in GNSS-denied environments is presented. The higher elevation of the UAS provides a clear-sky visibility line towards the GNSS satellites, thus its accuracy is significantly enhanced with respect to the ground GNSS receiver. Thus, the main endeavor is to transfer the order of accuracy of the GNSS on-board the UAS to the ground. The general architecture of the proposed system includes hardware and software components (i.e., camera, gimbal, range finder) for the automation of the procedure. The integration of the coordinate systems for each payload setting is described, while an error budget analysis is carried out to evaluate and identify the system’s critical elements along with the potential of the proposed method. | en |
| Type of Item | Επιστολή | el |
| Type of Item | Letter | en |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2021-09-03 | - |
| Date of Publication | 2020 | - |
| Subject | Global Navigation Satellite Systems (GNSS) | en |
| Subject | Unmanned aerial system (UAS) | en |
| Subject | Obstructed environment | en |
| Subject | Accuracy | en |
| Subject | Global Position System (GPS)-denied areas | en |
| Subject | Automatic surveying | en |
| Bibliographic Citation | P. Partsinevelos, D. Chatziparaschis, D. Trigkakis, and A. Tripolitsiotis, “A novel UAV-assisted positioning system for GNSS-denied environments,” Remote Sens., vol. 12, no. 7, Apr. 2020. doi: 10.3390/rs12071080 | en |
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