Results 21 to 30 of about 431 (152)
A Subset-Reduced Method for FDE ARAIM of Tightly-Coupled GNSS/INS [PDF]
Sensors, 2019 The advanced receiver autonomous integrity monitoring (advanced RAIM, ARAIM) is the next generation of RAIM which is widely used in civil aviation. However, the current ARAIM needs to evaluate hundreds of subsets, which results in huge computational ...
Weichuan Pan +3 more
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Galileo: The Added Value for Integrity in Harsh Environments [PDF]
Sensors, 2016 A global navigation satellite system (GNSS)-based navigation is a challenging task in a signal-degraded environments where GNSS signals are distorted by multipath and attenuated by fading effects: the navigation solution may be inaccurate or unavailable.
Daniele Borio, Ciro Gioia
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MATEC Web of Conferences, 2016 Reliability is an essential factor for GPS navigation system. Therefore, an integrity monitoring is considered as one of the most important parts for a navigation system.
Wang Er Shen +3 more
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NLOS Correction/Exclusion for GNSS Measurement Using RAIM and City Building Models [PDF]
Sensors, 2015 Currently, global navigation satellite system (GNSS) receivers can provide accurate and reliable positioning service in open-field areas. However, their performance in the downtown areas of cities is still affected by the multipath and none-line-of-sight
Li-Ta Hsu, Yanlei Gu, Shunsuke Kamijo
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IET Radar, Sonar & NavigationGlobal navigation satellite system (GNSS) is widely recognised to be vulnerable to spoofing attacks. A sophisticated form of GNSS spoofing, termed distributed spoofing, transmits each spoofing signal through dedicated antennas.
Minghan Zhong +3 more
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Does RAIM with Correct Exclusion Produce Unbiased Positions? [PDF]
Sensors, 2017 As the navigation solution of exclusion-based RAIM follows from a combination of least-squares estimation and a statistically based exclusion-process, the computation of the integrity of the navigation solution has to take the propagated uncertainty of ...
Peter J. G. Teunissen +2 more
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IEEE Access, 2021 In this article, the problem of receiver autonomous integrity monitoring (RAIM) is transformed into a modeling problem using dynamic data and an artificial neural network. A new RAIM method based on a probabilistic neural network (P-RAIM) is presented to
Xueen Zheng +7 more
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A Robust Fault Detection Algorithm for the GNSS/INS Integrated Navigation Systems [PDF]
Journal of Geodesy and Geoinformation Science, 2020 Integrity is an important index for GNSS-based navigation and positioning, and the receiver autonomous integrity monitoring (RAIM) algorithm has been presented for integrity applications.
Chen JIANG,Shubi ZHANG,Yizhi CAO,Hui LI,Hui ZHENG
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Space Weather, Volume 21, Issue 12, December 2023., 2023 Abstract Satellite navigation based on the Global Navigation Satellite System can provide aircraft with more precise guidance and increase flight efficiency. However, severe space weather events can cause satellite navigation failure due to the dramatic increase in total electron content and irregularities in the ionosphere.
Dabin Xue +3 more
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Space Weather, Volume 21, Issue 2, February 2023., 2023 Abstract Vertical total electron content (VTEC) has great importance in describing the ionosphere. VTEC values are commonly distributed in regular grids by means of so‐called global ionospheric maps (GIMs) and regional ionospheric maps (RIMs). Although considerable research has been conducted to develop regional and global models, there is no clear ...
Gabriel O. Jerez +6 more
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