Results 21 to 30 of about 443 (169)
Navigation, 2023 New GNSS applications demand resilience against radio interference and high position accuracy. Separately, these demands can be fulfilled by multi-antenna systems using spatial filtering and carrier-phase positioning algorithms like real-time kinematic ...
Tobias Bamberg +2 more
doaj +1 more source
Reconstructing GNSS Meta-Signal Observations Using Sideband Measurements
Navigation, 2023 Global navigation satellite systems (GNSSs) provide several signals on different frequencies: Two or more components can be processed jointly as a meta-signal.
Daniele Borio, Ciro Gioia
doaj +1 more source
A Consistent Regional Vertical Ionospheric Model and Application in PPP-RTK Under Sparse Networks
Navigation, 2023 Ionospheric augmentation is one of the most important dependences of PPP-RTK. Because of the dispersive features of the ionosphere, the ionospheric information is usually coupled with satellite- and receiver-related biases.
Sijie Lyu +5 more
doaj +1 more source
Robust GPS-Vision Localization via Integrity-Driven Landmark Attention
Navigation, 2022 For robust GPS-vision navigation in urban areas, we propose an integrity-driven landmark attention (ILA) technique via stochastic reachability. Inspired by cognitive attention in humans, we perform convex optimization to select a subset of landmarks from
Sriramya Bhamidipati, Grace Gao
doaj +1 more source
Results on GNSS Spoofing Mitigation Using Multiple Receivers
Navigation, 2022 GNSS receivers are vulnerable to spoofing attacks in which false satellite signals deceive receivers to compute false position and/or time estimates.
Niklas Stenberg +3 more
doaj +1 more source
Navigation, 2022 The interest in Moon exploration has grown substantially in the last few years, appointing the Moon as the first step toward deep space exploration.
Antoine Grenier +6 more
doaj +1 more source
Gravity Modeling in GNSS-Aided Inertial Navigation System Safety Certification
Navigation, 2022 Safety certification of GNSS-aided inertial navigation systems (INS) in civil aircraft requires thorough testing to ensure proper operation, even in worst-case conditions. One error that must be considered is that of gravity compensation on accelerometer
Timothy Needham, Michael Braasch
doaj +1 more source
Tracking Digital FM OFDM Signals for the Determination of Navigation Observables
Navigation, 2022 Methods are developed to acquire and track orthogonal frequency division multiplexing (OFDM) digital FM radio signals. These methods are being developed with the goal of using FM signals’ pseudorange and accumulated delta-range observables to navigate ...
Mark L. Psiaki, Brian D. Slosman
doaj +1 more source
TrackMe—A Hybrid Radio-Optical System for Assets Localization in Industry 4.0 Plants
Navigation, 2022 Precise localization is considered one of the most salient features of Industry 4.0 manufacturing facilities. For this reason, multiple solutions have already been proposed.
Kamil Staniec +3 more
doaj +1 more source
Detecting GNSS Jamming and Spoofing on Android Devices
Navigation, 2022 Global navigation satellite system (GNSS) location engines on Android devices provide location and navigation utility to billions of people worldwide. However, these location engines currently have very limited protection from threats to their position ...
Nicholas Spens +3 more
doaj +1 more source