Results 1 to 10 of about 97,722 (273)

GVINS: Tightly Coupled GNSS–Visual–Inertial Fusion for Smooth and Consistent State Estimation [PDF]

open access: yesIEEE Transactions on robotics, 2021
Visual–inertial odometry (VIO) is known to suffer from drifting, especially over long-term runs. In this article, we present GVINS, a nonlinear optimization-based system that tightly fuses global navigation satellite system (GNSS) raw measurements with ...
Shaozu Cao, Xiuyuan Lu, S. Shen
semanticscholar   +1 more source

Impact analysis of processing strategies for long-term GPS zenith tropospheric delay (ZTD) [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Homogenized atmospheric water vapour data are an important prerequisite for climate analysis. Compared with other techniques, GPS has an inherent homogeneity advantage, but it still requires reprocessing and homogenization to eliminate impacts of applied
J. Bai   +6 more
doaj   +1 more source

GNSS techniques for real-time monitoring of landslides: a review

open access: yesSatellite Navigation, 2023
Currently, Global Navigation Satellite System (GNSS) Real-Time Kinematic positioning (RTK) and Precise Point Positioning (PPP) techniques are widely employed for real-time monitoring of landslides.
Guanwen Huang, Shikang Du, Duo Wang
semanticscholar   +1 more source

Structure and performance analysis of fusion positioning system with a single 5G station and a single GNSS satellite

open access: yesGeo-spatial Information Science, 2023
NaGlobal vigation Satellite System (GNSS) positioning technology is widely used for its high precision, global, and all-weather service. However, in complex environments such as urban canyons, GNSS performance is often degraded due to signal occlusion ...
Chi Guo   +4 more
doaj   +1 more source

Precise orbit determination of Haiyang-2D using onboard BDS-3 B1C/B2a observations with ambiguity resolution

open access: yesSatellite Navigation, 2023
The Haiyang-2D altimetry mission of China is one of the first Low Earth Orbit (LEO) satellites that can receive new B1C/B2a signals from the BeiDou-3 Navigation Satellite System (BDS-3) for Precise Orbit Determination (POD).
Kecai Jiang   +6 more
doaj   +1 more source

Latest Advances in the Global Navigation Satellite System - Reflectometry (GNSS-R) Field

open access: yesRemote Sensing, 2023
The global navigation satellite system-reflectometry (GNSS-R) field has experienced an exponential growth as it is becoming relevant to many applications and has captivated the attention of an elevated number of research scholars, research centers and ...
N. Rodriguez-Alvarez   +2 more
semanticscholar   +1 more source

Quasi-4-dimension ionospheric modeling and its application in PPP

open access: yesSatellite Navigation, 2022
Ionospheric delay modeling is not only important for Global Navigation Satellite System (GNSS) based space weather study and monitoring, but also an efficient tool to speed up the convergence time of Precise Point Positioning (PPP).
Shengfeng Gu   +7 more
doaj   +1 more source

A Survey on Low-Power GNSS

open access: yesIEEE Communications Surveys and Tutorials, 2023
With the miniaturization of electronics, receivers are getting more and more embedded into devices with harsh energy constraints. This process has led to new signal processing challenges due to the limited processing power on battery-operated devices and
Antoine Grenier   +3 more
semanticscholar   +1 more source

Improving Precise Orbit Determination of LEO Satellites Using Enhanced Solar Radiation Pressure Modeling

open access: yesSpace Weather, 2023
Precise orbit knowledge is a fundamental requirement for low Earth orbit (LEO) satellites. High‐precision non‐gravitational force modeling directly improves the overall quality of LEO precise orbit determination (POD). To address the potential systematic
Youcun Wang   +7 more
doaj   +1 more source

A Comprehensive Review of GNSS/INS Integration Techniques for Land and Air Vehicle Applications

open access: yesApplied Sciences, 2023
Navigation systems are of interest for applications in both civilian and military vehicles. Satellite navigation systems and inertial navigation systems are the most applied in this area.
Nurlan Boguspayev   +4 more
semanticscholar   +1 more source

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