Results 21 to 30 of about 28,320 (302)

Global navigation satellite systems

open access: yesGeographic Information Science & Technology Body of Knowledge
This is a definition of Global Navigation Satellite Systems in the Elgar Concise Encyclopedia of Space Law. Providing a comprehensive and timely overview of the evolving landscape of space law, this Encyclopedia emphasises the importance of international collaboration in maintaining outer space as a peaceful domain.
Mike Tooley, David Wyatt
  +5 more sources

State transformation extended Kalman filter–based tightly coupled strapdown inertial navigation system/global navigation satellite system/laser Doppler velocimeter integration for seamless navigation of unmanned ground vehicle in urban areas

open access: yesInternational Journal of Advanced Robotic Systems, 2023
With the rapid development of unmanned ground vehicle industry, how to achieve continuous, reliable, and high-accuracy navigation becomes very important. At present, the integrated navigation with global navigation satellite system and strapdown inertial
Xue-Yu Du   +4 more
doaj   +1 more source

Redundant multi-mode filter for a navigation system [PDF]

open access: yes, 2007
An approach is introduced to the design of a multi-mode navigation filter to combine a low-cost skewed redundant inertial measurement unit (SRIMU) with a multifunctional GPS (MF-GPS) receiver in order to implement a fault-tolerant aircraft navigation ...
Jia, Huamin, Allerton, David J.
core   +1 more source

Satellite Navigation Signal Authentication in GNSS: A Survey on Technology Evolution, Status, and Perspective for BDS

open access: yesRemote Sensing, 2023
As the Global Navigation Satellite System (GNSS) is widely used in all walks of life, the signal structure of satellite navigation is open, and the vulnerability to spoofing attacks is also becoming increasingly prominent, which will seriously affect the
Xiao Chen   +4 more
doaj   +1 more source

Safety arguments for next generation location aware computing [PDF]

open access: yes, 2010
Concerns over the accuracy, availability, integrity and continuity of Global Navigation Satellite Systems (GNSS) have limited the integration of GPS and GLONASS for safety-critical applications.
C.M. Holloway   +4 more
core   +1 more source

A Comparative Analysis of Multi-Epoch Double-Differenced Pseudorange Observation and Other Dual-Satellite Lunar Global Navigation Systems

open access: yesAerospace, 2021
In this study, dual-satellite lunar global navigation systems that consist of a constellation of two navigation satellites providing geo-spatial positioning on the lunar surface were compared.
Toshiki Tanaka   +3 more
doaj   +1 more source

Global capabilities of BeiDou Navigation Satellite System

open access: yesSatellite Navigation, 2020
The BeiDou Navigation Satellite System (BDS) has completed the constellation deployment and started to provide global services. After achieving the capabilities of global coverage, global first-class accuracy for Positioning, Navigation and Timing (PNT),
Jun Lu, Xia Guo, Chengeng Su
doaj   +1 more source

Study on LOS to Vertical Deformation Conversion Model on Embankment Slopes Using Multi-Satellite SAR Interferometry

open access: yesISPRS International Journal of Geo-Information
Slant range geometry plays a crucial role in interpreting synthetic aperture radar (SAR) observations, especially in converting line-of-sight (LOS) surface deformations to actual vertical subsidence. This paper proposes a new conversion model to retrieve
Jie Liu   +4 more
doaj   +1 more source

Infrastructure camera calibration with GNSS for vehicle localisation

open access: yesIET Intelligent Transport Systems, 2023
Intelligent transportation and smart city applications are currently on the rise. In many applications, diverse and accurate sensor perception of vehicles is crucial.
Risto Ojala   +3 more
doaj   +1 more source

On the Impact of Channel Cross-Correlations in High-Sensitivity Receivers for Galileo E1 OS and GPS L1C Signals [PDF]

open access: yes, 2012
One of the most promising features of the modernized global navigation satellite systems signals is the presence of pilot channels that, being data-transition free, allow for increasing the coherent integration time of the receivers.
Margaria, Davide   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy