Results 21 to 30 of about 128 (112)
Nominal Range Error Analysis to Support ARAIM [PDF]
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2016 This paper presents a nominal range error analysis to support ARAIM based on a statistical study of orbit and clock errors observations for Galileo F-NAV Open Service. Nominal range error is characterized by the so-called Signal-in-Space Range Error (SISRE) which is computed by comparing precise reference orbits to broadcast ephemeris for each ...
Perea Diaz, Santiago +5 more
openaire +2 more sources
A Modified Range Consensus Algorithm Based on GA for Receiver Autonomous Integrity Monitoring
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 With the considerable increase of visible satellites for positioning, the fault detection and identification performance of Range Consensus (RANCO) algorithm for Receiver Autonomous Integrity Monitoring (RAIM) will significantly be improved. However, the calculation amount of RANCO algorithm will exponentially increase for the sharp addition of visible
Jing Zhao +4 more
wiley +1 more source
Robust Modeling of GNSS Orbit and Clock Error Dynamics
Navigation, 2022 In this paper, we develop new stochastic orbit and clock error models for positioning, fault detection, and integrity monitoring over time. GPS and Galileo orbit and clock data are evaluated and ranging errors are analyzed and modeled over time.
Elisa Gallon +2 more
doaj +1 more source
ARAIM Operational Performance Tested in Flight [PDF]
, 2014 This paper presents a flight performance analysis of next generation ARAIM based on GPS and GLONASS dual-frequency data collected during flight trials using DLR’s research aircraft ATTAS. The test results are based on joint PVT and ARAIM post-processing and investigate potential differences between simulated ARAIM performance levels and actual ...
Rippl, Markus +3 more
openaire +2 more sources
Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning
Satellite Navigation, 2023 Integrity monitoring for precise point positioning is critical for safety-related applications. With the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles, the integrity monitoring method of high-precision ...
Wenhao Zhang, Jinling Wang
doaj +1 more source
A systematic review of MEG‐based studies in Parkinson's disease: The motor system and beyond
Human Brain Mapping, Volume 40, Issue 9, Page 2827-2848, June 15, 2019., 2019 Abstract Parkinson's disease (PD) is accompanied by functional changes throughout the brain, including changes in the electromagnetic activity recorded with magnetoencephalography (MEG). An integrated overview of these changes, its relationship with clinical symptoms, and the influence of treatment is currently missing.
Lennard I. Boon +6 more
wiley +1 more source
Research on Exact Thresholds for ARAIM MHSS Fault Monitoring
Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019 Multiple Hypothesis Solution Separation (MHSS) is the baseline algorithm for Advanced Receiver Autonomous Integrity Monitoring (ARAIM), and it detects faults by comparing the test statistic with a threshold. However, the cuboid threshold structure of the MHSS fault monitoring baseline algorithm lacks omnidirectionality, which leads to low conformity ...
Sida Zhang +3 more
wiley +1 more source
IEEE Access, 2018 The advanced receiver autonomous integrity monitoring (ARAIM) is an augmentation of future multi-constellation global navigation satellite system for fulfilling stringent navigation integrity specified in safety-critical applications. Until recently, the
Peng Zhao, Yanbo Zhu, Rui Xue, Lei Zheng
doaj +1 more source
Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS
International Journal of Aerospace Engineering, Volume 2017, Issue 1, 2017., 2017 The Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. The main impact on the availability of current single frequency systems results from the necessary protection against ionospheric gradients.
Michael Felux +4 more
wiley +1 more source