Results 11 to 20 of about 8,787 (210)

CONCEPTUAL DESIGN OF MONITORING AND CONTROL SUBSYSTEM FOR GNSS GROUND STATION [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
The Global Navigation Satellite System (GNSS) becomes more important and is applied to various systems. Recently, the Galileo navigation system is being developed in Europe.
Seongkyun Jeong   +4 more
doaj   +1 more source

Overview of Jamming Technology for Satellite Navigation

open access: yesMachines, 2023
The Global Navigation Satellite System (GNSS) has been applied to all aspects of social livelihood and military applications and has become an important part of national infrastructure construction.
Xiangjun Li   +6 more
doaj   +1 more source

A Review on Multi-GNSS for Earth Observation and Emerging Applications

open access: yesRemote Sensing, 2022
Global Navigation Satellite System (GNSS) has drawn the attention of scientists and users all over the world for its wide-ranging Earth observations and applications.
Shuanggen Jin   +2 more
doaj   +1 more source

GNSS-IR Snow Depth Retrieval from Multi-GNSS and Multi-Frequency Data

open access: yesRemote Sensing, 2021
Global navigation satellite system interferometric reflectometry (GNSS-IR) represents an extra method to detect snow depth for climate research and water cycle managing. However, using a single frequency of GNSS-IR for snow depth retrieval is often found
Jinsheng Tu   +9 more
doaj   +1 more source

Effect of Multiple GNSS Integration on the Number and Spatiotemporal Coverage of Radio Occultation Events

open access: yesAtmosphere, 2022
The development of global navigation satellite systems (GNSSs) and multi-system compatible radio occultation (RO) techniques provides favorable conditions and opportunities for increasing the number of occultation events and improving their ...
Congliang Liu   +6 more
doaj   +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

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

Accuracy Analysis of GNSS (GPS, GLONASS and BEIDOU) Obsevation For Positioning [PDF]

open access: yesE3S Web of Conferences, 2019
Global Navigation Satellite System called GNSS is a term used for the entire global navigation that already operate or are in the planning for the future. Some of the satellite that can be used are GPS (Global Positioning System) operated by USA, GLONASS
Khomsin   +3 more
doaj   +1 more source

Predicting Long-Term Stability of Precise Oscillators under Influence of Frequency Drift

open access: yesSensors, 2018
High-performance oscillators, atomic clocks for instance, are important in modern industries, finance and scientific research. In this paper, the authors study the estimation and prediction of long-term stability based on convex optimization techniques ...
Weiwei Cheng, Guigen Nie
doaj   +1 more source

NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor

open access: yesSensors, 2020
A dual-frequency all-in-one Global Navigation Satellite System (GNSS) receiver with a multi-core 32-bit RISC (reduced instruction set computing) application processor was integrated and manufactured as a System-on-Chip (SoC) in a 110 nm CMOS ...
Tomasz Borejko   +11 more
doaj   +1 more source

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