Results 11 to 20 of about 18,768,627 (118)

BeiDou Augmented Navigation from Low Earth Orbit Satellites

open access: yesSensors, 2019
Currently, the Global Navigation Satellite System (GNSS) mainly uses the satellites in Medium Earth Orbit (MEO) to provide position, navigation, and timing (PNT) service.
Mudan Su   +3 more
doaj   +2 more sources

BeiDou Inter-Satellite-Type Bias Evaluation and Calibration for Mixed Receiver Attitude Determination

open access: yesSensors, 2013
The Chinese BeiDou system (BDS), having different types of satellites, is an important addition to the ever growing system of Global Navigation Satellite Systems (GNSS).
Noor Raziq   +2 more
doaj   +2 more sources

Modeling and Assessment of Precise Time Transfer by Using BeiDou Navigation Satellite System Triple-Frequency Signals

open access: yesSensors, 2018
This study proposes two models for precise time transfer using the BeiDou Navigation Satellite System triple-frequency signals: ionosphere-free (IF) combined precise point positioning (PPP) model with two dual-frequency combinations (IF-PPP1) and ...
Rui Tu   +4 more
doaj   +2 more sources

Precise positioning in real-time using GPS-RTK signal for visually impaired people navigation system [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 24/9/2010.This thesis presents the research carried out to investigate and achieve highly reliable and accurate navigation system of guidance for visually ...
Al-Salihi, Nawzad Kameran
core   +6 more sources

The BeiDou Navigation Message [PDF]

open access: yes, 2013
The article provides an overview of the BeiDou navigation message contents and highlights its specific communalities and differences with respect to other GNSS constellations. Making use of data collected by multi-GNSS monitoring stations of the MGEX and
Steigenberger, Peter   +1 more
core   +1 more source

A bagging tree-based pseudorange correction algorithm for global navigation satellite system positioning in foliage canyons

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Global navigation satellite system is indispensable to provide positioning, navigation, and timing information for pedestrians and vehicles in location-based services.
Fan Qin   +3 more
doaj   +1 more source

Performance evaluation of multi-GNSSs navigation in super synchronous transfer orbit and geostationary earth orbit

open access: yesSatellite Navigation, 2021
The autonomous navigation of the spacecrafts in High Elliptic Orbit (HEO), Geostationary Earth Orbit (GEO) and Geostationary Transfer Orbit (GTO) based on Global Navigation Satellite System (GNSS) are considered feasible in many studies.
Tao Shi, Xuebin Zhuang, Liwei Xie
doaj   +1 more source

Comprehensive assessment of real-time precise products from IGS analysis centers

open access: yesSatellite Navigation, 2022
Real-Time Precise Point Positioning (RT-PPP) has been one of the research hotspots in GNSS (Global Navigation Satellite System) community for decades. Real-time precise products of satellite orbits and clocks are the prerequisite for RT-PPP.
Bofeng Li   +4 more
doaj   +1 more source

Advances in BeiDou Navigation Satellite System (BDS) and satellite navigation augmentation technologies

open access: yesSatellite Navigation, 2020
Several noteworthy breakthroughs have been made with the BeiDou Navigation Satellite System (BDS) and other global navigation satellite systems as well as the associated augmentation systems, such as the commissioning of the BDS-3 preliminary system and ...
Rui Li   +6 more
doaj   +1 more source

Use of NTRIP for Optimizing the Decoding Algorithm for Real-Time Data Streams

open access: yesSensors, 2014
As a network transmission protocol, Networked Transport of RTCM via Internet Protocol (NTRIP) is widely used in GPS and Global Orbiting Navigational Satellite System (GLONASS) Augmentation systems, such as Continuous Operational Reference System (CORS ...
Zhanke He   +4 more
doaj   +1 more source

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