Zobrazeno 1 - 10
of 54
pro vyhledávání: '"horizontal dilution of precision"'
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 4, Pp 226-238 (2023)
The global averaged civilian positioning accuracy is still at meter level for all existing Global Navigation Satellite Systems (GNSSs), and the performance is even worse in urban areas. At lower altitudes than satellites, high altitude platform stati
Externí odkaz:
https://doaj.org/article/d518cbe76d1442eba2071c173c5ca60b
Autor:
Mariusz Specht
Publikováno v:
Metrology and Measurement Systems, Vol vol. 29, Iss No 1, Pp 17-36 (2022)
2D position error in the Global Positioning System (GPS) depends on the Horizontal Dilution of Precision (HDOP) and User Equivalent Range Error UERE. The non-dimensional HDOP coefficient, determining the influence of satellite distribution on the pos
Externí odkaz:
https://doaj.org/article/891e2ae0b8fd478c9ab658ef6cabd7aa
Publikováno v:
IEEE Access, Vol 9, Pp 126670-126683 (2021)
Long Range (LoRa) is a popular low power wide area network (LPWAN) technology which operates in the Industrial, Scientific and Medical (ISM) frequency band transmitting information over ranges in excess of 20 km and 5 km in rural and urban landscapes
Externí odkaz:
https://doaj.org/article/de83db0da2b742a68c7fa9bb7ac8d1c6
Publikováno v:
TransNav: International Journal on Marine Navigation and Safety of Sea Transportation, Vol 14, Iss 4, Pp 799-802 (2020)
In the project R-Mode a navigation system for Baltic Sea is designed. In the range of these actions in summer of 2020 the signal for DGPS base station Rozewie were adopted and measurements on the sea were performer. This experiment is shown in the ar
Externí odkaz:
https://doaj.org/article/f4ffa70e4bd642a8a5ece73a2b8b3f71
Autor:
Cezary Specht
Publikováno v:
Remote Sensing, Vol 15, Iss 1, p 10 (2022)
The Differential Global Positioning System (DGPS) is a marine navigation system operating at frequencies of 283.5–325 kHz, which is now the primary method for locating vessels in coastal shipping, as well as hydrography and mapping systems worldwid
Externí odkaz:
https://doaj.org/article/d5029842b94f4a0496ddec69243142d4
Publikováno v:
Sensors, Vol 22, Iss 9, p 3475 (2022)
Increasing the number of satellites in a global navigation satellite system (GNSS) improves the positioning accuracy and increases availability. However, it reduces the positioning accuracy improvement rate and increases the calculation loads, which
Externí odkaz:
https://doaj.org/article/3bf6bcc00dad4a75be7d7d57ce91ca93
Akademický článek
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Publikováno v:
ISPRS International Journal of Geo-Information, Vol 10, Iss 9, p 601 (2021)
The positioning accuracy of a ground-based system in an indoor environment is closely related to the geometric configuration of pseudolites. This paper presents a simple closed-form equation for computing the weighted horizontal dilution of precision
Externí odkaz:
https://doaj.org/article/4784fec4da18461f82ccf5973a18616a
Autor:
Kerem Küçük
Publikováno v:
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Vol 21, Iss 1, Pp 26-33 (2017)
With the very wide spectrum and high resolution characteristics, ultra-wideband (UWB) communication technique is chosen various indoor localization. This paper presents the localization performance of a positioning system, which uses UWB wireless s
Externí odkaz:
https://doaj.org/article/3ade126b28df48da95463e47268338ce
Publikováno v:
IEEE Access, Vol 5, Pp 15630-15640 (2017)
Due to the increasing potentials and benefits of unmanned aerial vehicles (UAVs) in civil and surveillance applications, the cooperative flight using multiple UAVs has attracted more and more attention. However, fault-tolerant cooperative positioning
Externí odkaz:
https://doaj.org/article/df50c5d6feb94335b3eea25a40f3888b