Results 11 to 20 of about 3,477,051 (221)

Performance Assessment of Positioning Based on Multi-Frequency Multi-GNSS Observations: Signal Quality, PPP and Baseline Solution

open access: yesIEEE Access, 2021
With the advances and modernization of GPS, GLONASS, BDS, Galileo and QZSS, multi-frequency and multi-system joint positioning has become the mainstream positioning and navigation.
Jinwei Bu   +4 more
doaj   +3 more sources

Multi-constellation GNSS precise point positioning with multi-frequency raw observations and dual-frequency observations of ionospheric-free linear combination

open access: yesSatellite Navigation, 2020
Precise point positioning (PPP) is famous for its capability of high-precision positioning with just one station as long as the receiver can receive global navigation satellite system (GNSS) signals.
Xiangdong An   +2 more
doaj   +2 more sources

Validation and Assessment of Multi-GNSS Real-Time Precise Point Positioning in Simulated Kinematic Mode Using IGS Real-Time Service

open access: yesRemote Sensing, 2018
Precise Point Positioning (PPP) is a popular technology for precise applications based on the Global Navigation Satellite System (GNSS). Multi-GNSS combined PPP has become a hot topic in recent years with the development of multiple GNSSs.
Liang Wang   +5 more
doaj   +3 more sources

Real-Time Tropospheric Delays Retrieved from Multi-GNSS Observations and IGS Real-Time Product Streams

open access: yesRemote Sensing, 2017
The multi-constellation Global Navigation Satellite Systems (GNSS) offers promising potential for the retrieval of real-time (RT) atmospheric parameters to support time-critical meteorological applications, such as nowcasting or regional short-term ...
Cuixian Lu   +7 more
doaj   +3 more sources

Multi-mode Multi-frequency GNSS-IR Combination System for Sea Level Retrieval [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2023
With the development of Global Navigation Satellite Systems (GNSS), geodetic GNSS receivers have been utilized to monitor sea levels using GNSS-Interferometry Reflectometry (GNSS-IR) technology.
Wenyue CHE, Xiaolei WANG, Xiufeng HE, Jin LIU
doaj   +1 more source

A Hierarchical Clustering Method to Repair Gaps in Point Clouds of Powerline Corridor for Powerline Extraction

open access: yesRemote Sensing, 2021
Powerline detection is becoming a significant issue for powerline monitoring and maintenance, which further ensures transmission security. As an efficient method, laser scanning has attracted considerable attention in powerline detection for its high ...
Yongzhao Fan   +4 more
doaj   +1 more source

Estimation and Evaluation of Zenith Tropospheric Delay from Single and Multiple GNSS Observations

open access: yesRemote Sensing, 2023
Multi-Global Navigation Satellite Systems (multi-GNSS) (including GPS, BDS, Galileo, and GLONASS) provide a significant opportunity for high-quality zenith tropospheric delay estimation and its applications in meteorology.
Sai Xia, Shuanggen Jin, Xuzhan Jin
doaj   +1 more source

Simulation of Multi-satellite GNSS Reflected Signals and Design of Simulator [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
Using GNSS-R technology for remote sensing of surface parameters has become a new trend in the field of remote sensing. With the rapid development of GNSS-R technology, GNSS-R simulation has become one of the new hot spots. Now the researches of the GNSS-
Bowen LI,Dongkai YANG,Bo ZHANG
doaj   +1 more source

A Multi-Global Navigation Satellite System (GNSS) Time Transfer Method with Federated Kalman Filter (FKF)

open access: yesSensors, 2023
Relative to single Global Navigation Satellite System (GNSS) measurements, i.e., the measurements from a single GNSS system, a single GNSS code, and a single GNSS receiver, multi-GNSS measurements for time transfer could improve reliability and provide ...
Kun Liang   +3 more
doaj   +1 more source

A Multi-GNSS Software Receiver [PDF]

open access: yes, 2022
Build and operate multi-GNSS and multi-frequency receivers with state-of-the-art techniques using this up-to-date, thorough and easy-to-follow text. Covering both theory and practice and complemented by MATLAB© code and digital samples with which to test
Kuusniemi, Heidi   +4 more
core   +1 more source

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