Results 61 to 70 of about 361 (154)

Improving Short Term Clock Prediction for BDS-2 Real-Time Precise Point Positioning

Sensors, 2019
Although there are already several real-time precise positioning service providers, unfortunately, not all users can use the correction information due to either cost of the service and limitation of their equipment or out of the service coverage.
Lina He, Hairui Zhou, Yuanlan Wen, Xiufeng He   +3 more
doaj   +1 more source

The Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS) – Achievements, prospects and challenges

Advances in Space Research, 2017
Over the past five years, the International GNSS Service (IGS) has made continuous efforts to extend its service from GPS and GLONASS to the variety of newly established global and regional navigation satellite systems. This report summarizes the achievements and progress made in this period by the IGS Multi-GNSS Experiment (MGEX).
Montenbruck, Oliver, Steigenberger, Peter, Prange, Lars, Deng, Zhiguo, Zhao, Qile, Perosanz, Felix, Romero, Ignacio, Noll, Carey, Stürze, Andrea, Weber, Georg, Schmid, Ralf, McLeod, Ken, Schaer, Stefan   +12 more
openaire   +5 more sources

Performance analysis of real-time and post-mission kinematic precise point positioning in marine environments

Geodesy and Geodynamics, 2020
This article focuses on the performance analysis of both real-time and post-mission kinematic precise point positioning (PPP) in challenging marine environments.
Serdar Erol, Reha Metin Alkan, İ. Murat Ozulu, Veli İlçi   +3 more
doaj   +1 more source

Precise orbit determination for BDS3 experimental satellites using iGMAS and MGEX tracking networks

Journal of Geodesy, 2018
In this contribution, we focus on the precise orbit determination (POD) for BDS3 experimental satellites with the international GNSS Monitoring and Assessment System (iGMAS) and Multi-GNSS Experiment (MGEX) tracking networks. The datasets of DOY (day of year) 001-230 in 2017 are analyzed with different processing strategies. By comparing receiver clock
Li, X., Yuan, Y., Zhu, Y., Huang, J., Wu, J., Xiong, Y., Zhang, X., Li, X.   +7 more
openaire   +8 more sources

An Improved BeiDou-2 Satellite-Induced Code Bias Estimation Method

Sensors, 2018
Different from GPS, GLONASS, GALILEO and BeiDou-3, it is confirmed that the code multipath bias (CMB), which originate from the satellite end and can be over 1 m, are commonly found in the code observations of BeiDou-2 (BDS) IGSO and MEO satellites.
Jingyang Fu, Guangyun Li, Li Wang
doaj   +1 more source

Assessment of the Real-Time and Rapid Precise Point Positioning Performance Using Geodetic and Low-Cost GNSS Receivers

Remote Sensing
Precise Point Positioning (PPP), coupled with the ambiguity resolution (AR) method, has demonstrated substantial potential in fields like agricultural navigation and airborne mapping.
Mengmeng Chen, Lewen Zhao, Wei Zhai, Yifei Lv, Shuanggen Jin   +4 more
doaj   +1 more source

Improving the day-boundary discontinuities in BDS-3 carrier-phase time and frequency transfer

Geo-spatial Information Science
The BeiDou global satellite navigation system (BDS) is an important tool for precise remote time and frequency transfer. The current day-boundary discontinuity in the data process of the BDS-3 carrier phase (CP) time transfer limits the exploitation of ...
Pengfei Zhang, Yuanxi Yang, Rui Tu, Yuping Gao, Xiaochun Lu   +4 more
doaj   +1 more source

Comparison of Ultra-Rapid Orbit Prediction Strategies for GPS, GLONASS, Galileo and BeiDou

Sensors, 2018
Currently, ultra-rapid orbits play an important role in the high-speed development of global navigation satellite system (GNSS) real-time applications.
Tao Geng, Peng Zhang, Wei Wang, Xin Xie
doaj   +1 more source

An Extremum Approximation ARAIM Algorithm Based on GPS and BDS

IEEE Access, 2020
Advanced receiver autonomous integrity monitoring (ARAIM) is a new technology that can reduce the vertical protection level (VPL) by optimizing the probability of configuration information to improve availability.
Xiyan Sun, Linzhu Xu, Yuanfa Ji, Wentao Fu, Suqing Yan, Qidong Chen   +5 more
doaj   +1 more source

Real-Time Retrieval of Precipitable Water Vapor From Galileo Observations by Using the MGEX Network

IEEE Transactions on Geoscience and Remote Sensing, 2020
The rapid development of the European Galileo system brings a great opportunity for the real-time retrieval of atmospheric parameters. In this contribution, Galileo observations are employed to retrieve real-time water vapor based on the precise point positioning (PPP) technique, where the benefit of ambiguity resolution on water vapor sensing is also ...
Cuixian Lu, Guolong Feng, Yuxin Zheng, Keke Zhang, Han Tan, Galina Dick, Jens Wickert   +6 more
openaire   +3 more sources