Results 31 to 40 of about 443 (169)
High-Precision Positioning Using Plane-Constrained RTK Method in Urban Environments
Navigation, 2022 High-precision positioning methods have drawn great attention in recent years due to the rapid development of smart vehicles as well as automatics driving technology.
Chen Zhuang +5 more
doaj +1 more source
Signal Quality Monitoring Based on Chip Domain Observables: Theory, Design, and Implementation
Navigation, 2022 Signal quality monitoring (SQM) is a technique utilized by satellite- and ground-based augmentation systems (SBAS/GBAS) to detect potential hazardous deformations in signals and better protect integrity for safety-critical users.
Xiang Wang +4 more
doaj +1 more source
Navigation and Ionosphere Characterization Using High-Frequency Signals: A Performance Analysis
Navigation, 2022 The performance of a proposed high-frequency (HF) navigation concept is analyzed using simulated data. The method relies on pseudorange and beat carrier-phase measurements of signals that propagate in the ionosphere along curved trajectories, where ...
Yoav Baumgarten +2 more
doaj +1 more source
NavigationPlans to establish a satellite network around the Moon to support communication, position, navigation, and timing services are rapidly evolving. Satellites that are part of this system broadcast their ephemeris as finite parameters to lunar users for ...
Marta Cortinovis +2 more
doaj +1 more source
Improving GNSS Positioning Using Neural-Network-Based Corrections
Navigation, 2022 Deep neural networks (DNNs) are a promising tool for global navigation satellite system (GNSS) positioning in the presence of multipath and non-line-of-sight errors, owing to their ability to model complex errors using data. However, developing a DNN for
Ashwin V. Kanhere +3 more
doaj +1 more source
Timescale Realization with Linked Platforms for AltPNT
NavigationRecognition of the critical importance of positioning, navigation, and timing to all economic sectors is driving the development of diverse alternatives to global navigation satellite systems (GNSSs), termed AltPNT.
Christopher Flood, Penina Axelrad
doaj +1 more source
Resilience Monitoring for Multi-Filter All-Source Navigation Framework With Assurance
Navigation, 2022 The Autonomous and Resilient Management of All-source Sensors (ARMAS) framework monitors residual-space test statistics across unique sensor-exclusion banks of filters (known as subfilters) to provide a resilient, fault-resistant all-source navigation ...
Jonathon S. Gipson, Robert C. Leishman
doaj +1 more source
Tightly Coupled Graph Neural Network and Kalman Filter for Smartphone Positioning
NavigationSmartphone positioning based on global navigation satellite systems is crucial for various applications, including navigation, emergency response, and augmented and virtual reality.
Adyasha Mohanty, Grace Gao
doaj +1 more source
Feasibility Study of GBAS/INS and RRAIM for Airport Surface Movement Under Low-Visibility Conditions
NavigationCurrently, surface movement, encompassing all operations on the airport surface prior to take-off and after landing, cannot be achieved under low-visibility conditions by an aircraft-guidance-only solution.
Junesol Song, Carl Milner, Heekwon No
doaj +1 more source
Sustainable Development, EarlyView.ABSTRACT This study investigates stakeholder perspectives on mobilising private‐sector finance for climate adaptation in Southeast Asia, emphasising Hong Kong's role as a financial intermediary. Through semi‐structured interviews with diverse stakeholders, including practitioners, policymakers, insurers, and project developers, we employed a grounded ...
Laurence L. Delina +4 more
wiley +1 more source