Results 11 to 20 of about 128 (112)

An Improved Adaptive Simulated Annealing Particle Swarm Optimization Algorithm for ARAIM Availability

open access: yesJournal of Advanced Transportation, 2023
Civil aviation transportation equipment is more convenient and faster than other transportation tools and is an essential part of intelligent transportation. It is significant to study the reliability of positioning information and enhance traffic safety.
Ershen Wang   +6 more
doaj   +2 more sources

The erythropoietin‐derived peptide ARA 284 reduces tissue wasting and improves survival in a rat model of cancer cachexia

open access: yesJournal of Cachexia, Sarcopenia and Muscle, 2022
Background Cancer cachexia (CC) is a severe complication during the last stages of the disease, which is characterized by the substantial loss of muscle and fat mass. Currently, there is no effective treatment of CC.
Sandra Palus   +8 more
doaj   +2 more sources

Availability evaluation and optimisation of advanced receiver autonomous integrity monitoring fault detection and exclusion considering temporal correlations

open access: yesIET Radar, Sonar & Navigation
The Advanced Receiver Autonomous Integrity Monitoring (ARAIM) provides an Aircraft‐Based Augmentation System function for aircraft Global Navigation Satellite System equipment.
Jingtian Du   +3 more
doaj   +2 more sources

GNSS spoofing detection through spatial processing

open access: yesNAVIGATION, Volume 68, Issue 2, Page 243-258, Summer 2021., 2021
Abstract In this paper, we present an algorithmic framework for signal‐geometry‐based approaches of GNSS spoofing detection. We formulate a simple vs. simple hypothesis test independent of nuisance parameters that results in significantly reduced missed detection probability compared to prior approaches.
Fabian Rothmaier   +3 more
wiley   +1 more source

A review of system integration and current integrity monitoring methods for positioning in intelligent transport systems

open access: yesIET Intelligent Transport Systems, Volume 15, Issue 1, Page 43-60, January 2021., 2021
Abstract Applications of intelligent transportation systems are continuously increasing. Since positioning is a key component in these systems, it is essential to ensure its reliability and robustness, and monitor its integrity so that the required levels of positioning accuracy, integrity, continuity and availability can be maintained.
Tarek Hassan   +2 more
wiley   +1 more source

Preliminary Analysis of BDS-3 Performance for ARAIM

open access: yesNavigation, 2023
To support the operation of advanced receiver autonomous integrity monitoring (ARAIM), an integrity support message indicating a minimum performance level of satellite constellation is required for aircraft navigation.
Hengwei Zhang, Yiping Jiang, Ling Yang
doaj   +1 more source

A Multipath Processing Technology Based on Multiparameter‐Combined Observation in GNSS

open access: yesMobile Information Systems, Volume 2021, Issue 1, 2021., 2021
In the Global Navigation Satellite System (GNSS), the multipath error affected by many aspects is the main error source that affects satellite navigation, and it is difficult to establish a much more accurate model to analyze it. Based on the ground multipath reflection model, it firstly deeply studies the influence of GNSS satellite orbit parameters ...
T. Y. Zhou, B. W. Lian, Chi-Hua Chen
wiley   +1 more source

Impact of sample correlation on SISRE overbound for ARAIM [PDF]

open access: yesNAVIGATION, 2018
This paper analyzes the effect of error correlation on the SISRE bounding for GPS and Galileo satellites. For a given period of data collection, it computes the effective number of independent samples contained in a dataset applying an estimation variance analyses.
Santiago Perea   +2 more
openaire   +2 more sources

Development of the dual‐frequency dual‐constellation airborne multipath models

open access: yesNAVIGATION, Volume 67, Issue 1, Page 61-81, Spring 2020., 2020
Abstract This paper presents a methodology to build multipath models for aviation use of new Global Positioning System (GPS) and Galileo signals. The estimation of airframe multipath errors makes use of carrier phase measurements; thus, it is affected by the integer ambiguities. A new method for removing the ambiguities from the multipath estimation is
Mihaela‐Simona Circiu   +5 more
wiley   +1 more source

ARAIM Stochastic Model Refinements for GNSS Positioning Applications in Support of Critical Vehicle Applications

open access: yesSensors, 2022
Integrity monitoring (IM) is essential if GNSS positioning technologies are to be fully trusted by future intelligent transport systems. A tighter and conservative stochastic model can shrink protection levels in the position domain and therefore enhance
Ling Yang   +3 more
doaj   +1 more source

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