Results 51 to 60 of about 2,562 (200)

A new approach for optimising GNSS positioning performance in harsh observation environments [PDF]

open access: yes, 2014
Maintaining good positioning performance has always been a challenging task for Global Navigation Satellite Systems (GNSS) applications in partially obstructed environments.
Alan Dodson   +10 more
core   +3 more sources

Centimeter-Level Precise Orbit Determination for the Luojia-1A Satellite Using BeiDou Observations

open access: yesRemote Sensing, 2020
Luojia-1A is a scientific experimental satellite operated by Wuhan University, which is the first low earth orbiter (LEO) navigation signal augmentation experimental satellite.
Lei Wang   +6 more
doaj   +1 more source

A Kalman filter single point positioning for maritime applications using a smartphone [PDF]

open access: yes, 2021
Different positioning techniques have been largely adopted for maritime applications that require high accuracy kinematic positioning. The main objective of the paper is the performance assessment of a Single Point Positioning algorithm (SPP), with a ...
Angrisano A.   +8 more
core   +2 more sources

SINS/BDS tightly coupled integrated navigation algorithm for hypersonic vehicle

open access: yesScientific Reports, 2022
A tightly coupled integrated navigation system (TCINS) for hypersonic vehicles is proposed when the satellite signals are disturbed. Firstly, the architecture of the integrated navigation system for the hypersonic vehicle is introduced.
Kai Chen   +3 more
doaj   +1 more source

Beacon Satellite Symposium: Session 5B - June 30th 2016: Radio Occultation Techniques and Measurements [PDF]

open access: yes, 2016
During the Beacon Satellite Symposium, held in Trieste, Italy, between June 26 and July 1 2016, the JRC chaired the session 5B: Radio Occultation Techniques and Measurements. The corresponding abstract of the session is provided as follows: Since the mid-
ARAGON ANGEL MARIA ANGELES
core   +1 more source

Evaluation Methods of Satellite Navigation System Performance [PDF]

open access: yes, 2019
With the development of global satellite navigation system, for example, global positioning system (GPS) and so on, some regional navigation systems and augmentation systems are developing rapidly.
He, He, Jia, Chaoying, Wang, Ershen
core   +1 more source

Tracing Three Decades of Low Earth Orbit Satellite Communication Development: A Bibliometric and Main Path Analysis of Network Architectures, Protocol Evolution, and Emerging Intelligent Services

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite communication systems have evolved into a critical component of global broadband networks, enabling wide‐area connectivity, IoT services, and intelligent multilayer satellite–terrestrial integration. Despite rapid advancements in constellation deployment, routing mechanisms, resource management, and LEO–5G/6G ...
Wei‐Hao Su   +2 more
wiley   +1 more source

A commentary of Hyper-accurate position in MIT Technology Review 2021

open access: yesFundamental Research, 2021
The positioning accuracy improvement of satellite navigation system support the development of industries related to high accuracy positioning. The BeiDou global satellite navigation system (BDS-3) started providing full-scale global services in 2020 ...
Xia Ren, Yuanxi Yang
doaj   +1 more source

Operationalizing the Metaverse for Urban Sustainability: Evidence From an Expert Panel and the Seoul Metaverse City Case Study

open access: yesSustainable Development, EarlyView.
ABSTRACT Smart cities and urban digital twins have fostered the emergence of immersive environments, such as the metaverse. While contemporary scholarlship has increasingly examined the integration of the metaverse within smart city infrastructures, the critical nexus between urban sustainability and the metaverse remains largely under‐researched. This
Jose Manuel Diaz‐Sarachaga   +1 more
wiley   +1 more source

The Open Service Signal in Space Navigation Data Comparison of the Global Positioning System and the BeiDou Navigation Satellite System

open access: yesSensors, 2014
More and more Global Navigation Satellite Systems (GNSSs) have been developed and are in operation. Before integrating information on various GNSSs, the differences between the various systems must be studied first. This research focuses on analyzing the
Shau-Shiun Jan, An-Lin Tao
doaj   +1 more source

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