Results 1 to 10 of about 29 (26)

T-RAIM Approaches: Testing With Galileo Measurements

Sensors, 2023
Several applications rely on time retrieved from Global Navigation Satellite System (GNSS), and this pushes for integrity tailored to timing. Integrity information could be broadcast by GNSS itself, but currently, there are no GNSSs providing such integrity information for a timing application.
Ciro Gioia
exaly   +6 more sources

T-RAIM for Precise Orbit Determination in LEO-PNT

Sensors
The rapid development of Low Earth Orbit Position, Navigation, and Timing (LEO-PNT) constellations presents opportunities to augment Global Navigation Satellite Systems (GNSSs) with additional signals from Low Earth Orbit (LEO) satellites, thereby improving performance and reliability for users. This research study addresses the challenges posed by the
Ciro Gioia, Francesco Menzione, Andrea Piccolo, Stefano Casotto, Massimo Bardella   +4 more
openaire   +4 more sources

Multi-Layer Defences for Robust GNSS Timing Retrieval

Sensors, 2021
A multi-layered interference mitigation approach can significantly improve the performance of Global Navigation Satellite System (GNSS) receivers in the presence of jamming.
Ciro Gioia, Daniele Borio
doaj   +1 more source

Equivalence Proof and Performance Analysis of Weighted Least Squares Residual Method and Weighted Parity Vector Method in RAIM

IEEE Access, 2019
Besides accuracy, integrity is another important performance measure of GNSS. The classical least-squares-residual (LSR) method and parity vector (PV) method are often used in the receiver autonomous integrity monitoring (RAIM).
Xiaping Ma, Kegen Yu, Jean-Philippe Montillet, Xiaoxing He   +3 more
doaj   +1 more source

Interference Mitigation and T-RAIM for Robust GNSS Timing

2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace), 2021
Several layers of defense exist to improve Global Navigation Satellite System (GNSS) receiver performance in the presence of interference. These defenses are implemented at different receiver stages and include pre-correlation interference mitigation, post-correlation measurement screening and Fault Detection and Exclusion (FDE) at the Position ...
Ciro Gioia, Daniele Borio
openaire   +1 more source

Multi-Constellation T-RAIM: An Experimental Evaluation

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2017
Time-Receiver Autonomous Integrity Monitoring (T-RAIM) algorithms assess the reliability of the timing solution provided by a Global Navigation Satellite System (GNSS) timing receiver. Timing receivers process GNSS observables under the assumption that their antenna is static or that their position is known.
Ciro Gioia, Daniele Borio
openaire   +1 more source

Robust Precise on Board Orbit Determination Exploiting T-RAIM for LEO-PNT

The International Technical Meeting of the The Institute of Navigation
The rapid development of LEO-PNT constellations offers an opportunity to enhance GNSS services with additional signals from LEO satellites. These signals aim to improve performance and reliability for GNSS users. With various global initiatives, LEO-PNT systems utilize cost-effective, multi-tiered architectures that rely on GNSS spaceborne receivers ...
Menzione, F., Gioia, C., Piccolo, A., Casotto, S., Bardella, M.   +4 more
openaire   +1 more source

Performance Analyses of a RAIM Algorithm for Kalman Filter With GPS and NavIC Constellations

Sensors, 2021
Susmita Bhattacharyya
exaly  

Smartphone GNSS Performance in an Urban Scenario With RAIM Application

Sensors, 2022
Salvatore Gaglione, Antonio Angrisano
exaly  

Worst-Case Integrity Risk Sensitivity for RAIM With Constellation Modernization

Remote Sensing, 2023
Liuqi Wang, Ruijie Li
exaly