Results 31 to 40 of about 2,653,958 (217)
3D Vision Aided GNSS Real-Time Kinematic Positioning for Autonomous Systems in Urban Canyons
Navigation, 2023 In this paper, a three-dimensional vision-aided method is proposed to improve global navigation satellite system (GNSS) real-time kinematic (RTK) positioning.
Weisong Wen, Xiwei Bai, Li-Ta Hsu
doaj +1 more source
Authentication of Satellite-Based Augmentation Systems with Over-the-Air Rekeying Schemes
Navigation, 2023 Here we delineate a complete satellite-based augmentation system (SBAS) authentication scheme, including over-the-air rekeying (OTAR), that uses the elliptic curve digital signature algorithm (ECDSA) and timed efficient stream loss-tolerant ...
Jason Anderson +3 more
doaj +1 more source
Navigation, 2023 There is growing interest in designing a future lunar navigation satellite system (LNSS) while utilizing a SmallSat platform. However, many design decisions, e.g., regarding the satellite clock and lunar orbit, are yet to be finalized. In our prior work,
Sriramya Bhamidipati +2 more
doaj +1 more source
Hong Kong UrbanNav: An Open-Source Multisensory Dataset for Benchmarking Urban Navigation Algorithms
Navigation, 2023 Accurate positioning in urban canyons remains a challenging problem. To facilitate the research and development of reliable and precise positioning methods using multiple sensors in urban canyons, we built a multisensory dataset, UrbanNav, collected in ...
Li-Ta Hsu +6 more
doaj +1 more source
Closed-Form Study of Undetected Range Errors Induced by Ionospheric Anomalies for GAST-D GBAS
Navigation, 2023 In ground-based augmentation system (GBAS) approach service type D (GAST-D), various ionospheric monitors are implemented in both aircraft and ground facilities to detect ionospheric anomalies.
Wang Li, Yiping Jiang
doaj +1 more source
Dynamic Inversion Model of the Mooring Force on a Floating Bollard of a Sea Lock
Journal of Marine Science and Engineering, 2023 Sea locks that connect inland canals and rivers to the open sea are crucial links that ensure the efficient navigation of ships. Floating bollards (FBs) are significant components of sea locks, and they are affected by factors such as large ships, speed ...
Linjian Wu +5 more
semanticscholar +1 more source
Atom Strapdown: Toward Integrated Quantum Inertial Navigation Systems
Navigation, 2023 We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a ...
Benjamin Tennstedt +5 more
doaj +1 more source
GEODNET: Global Earth Observation Decentralized Network
Navigation, 2023 This paper explains some design and architecture decisions around the GEODNET network and the GeoDAO decentralized autonomous organization, which aims to create and operate a truly decentralized public GNSS reference sensing network.
Mike Horton +4 more
doaj +1 more source
Satellite Constellation Design for a Lunar Navigation and Communication System
Navigation, 2023 There has been a growing interest in using small satellites (SmallSats) for a future lunar navigation and communication satellite system (LNCSS). We conceptualize the design of a SmallSat-based LNCSS with Earth-global positioning system (GPS) time ...
Sriramya Bhamidipati +3 more
doaj +1 more source
A Novel Co-Calibration Method for a Dual Heterogeneous Redundant Marine INS
Navigation, 2023 This paper focuses on a heterogeneous redundant inertial navigation system (INS) that consists of one three-axis rotation-modulation fiber optic gyroscope (FOG) INS and one strapdown ring laser gyroscope (RLG) INS.
Jiarui Cui +4 more
doaj +1 more source