Results 141 to 150 of about 361 (154)
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Estimation of QZSS differential code biases using QZSS/GPS combined observations from MGEX
Advances in Space Research, 2021Abstract As an important error source in Global Navigation Satellite System (GNSS) positioning and ionospheric modeling, the differential code biases (DCB) need to be estimated accurately, e.g., the regional Quasi-Zenith satellite system (QZSS). In this paper, the DCB of QZSS is estimated by adopting the global ionospheric modeling method based on ...
Qisheng Wang, Shuanggen Jin, Youjian Hu
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Comparative analysis of MGEX products for post-processing multi-GNSS PPP
Measurement, 2019Abstract In recent years, the precise products generated by the International GNSS Service (IGS) as a part of the Multi-GNSS Experiment (MGEX) project have been increasingly used for multi-GNSS applications. Nowadays, six IGS Analysis Centers (ACs) have been providing GNSS products with different features.
Berkay Bahadur, Metin Nohutcu
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Estimation and analysis of BDS-3 multi-frequency differential code bias using MGEX observations
Journal of Global Positioning Systems, 2022Differential code bias (DCB) significantly affects the ionosphere modeling, precise positioning, and navigation applications when using code observations. With the fully completed BeiDou navigation satellite system (BDS-3), there exist various DCBs of new frequencies and types which should be handled.
Haijun Yuan +3 more
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Assessment of geodetic products from MGEX analyses for the Onsala site
2020<div>The emergence of BeiDou and Galileo as operational Global Navigation Satellite Systems (GNSS), in addition to Global Positioning System (GPS) and GLONASS which are already in use, opens up possibilities in delivering geodetic products with higher precision.
Periklis-Konstantinos Diamantidis +2 more
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Earth Rotation Parameters Determination Using BDS and GPS Data Based on MGEX Network
2014Earth rotation parameters (ERPs) are necessary parameters to achieve mutual transformation of the celestial reference frame and earth-fix reference frame. They are very important for satellite precise orbit determination (POD), high-precision space navigation and positioning.
Tianhe Xu, Sumei Yu, Jiajin Li
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Research on Multi-GNSS Wide-Lane FCB Estimation Method Based on MGEX
2019With the rapid development of Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) ambiguity resolution, high-quality Multi-GNSS fractional cycle biases products are urgently needed. In this contribution, the ambiguity resolution in Multi-GNSS is deduced in detail based on the observation and precise products provided by multi-GNSS
Lin Han, Yansong Meng, Lang Bian
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BDS Precise Orbit Determination with iGMAS and MGEX Observations by Double-Difference Method
2014The double-difference method is used to determine the BeiDou Navigation Satellite System (BDS) orbit with 5 stations of the first phase of international GNSS Monitoring and Assessment Service (iGMAS) and 8 stations of Multi-GNSS Experiment (MGEX).
Junhong Liu +5 more
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Precise Orbit Determination for Multi-GNSS Satellites in Wuhan IGS-MGEX Analysis Center
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2016This contribution summarizes the strategy used by Wuhan University (WHU) to determine precise orbit and clock products for Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS). In particular, the satellite attitude, phase center corrections, solar radiation pressure model developed and used for BDS satellites are addressed. In addition,
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Using IGMAS/MGEX Ground Tracking Station Data to Solve the Global Beidou Satellite DCB Products
2015In view of BeiDou Satellite System (BDS) developed by China, DCB product is not yet mature, this paper presents some technique and methods to calculate BDS satellite and receiver DCB, then analysis the performance of results under different constraints. Besides, we first take use of the GPS data to validate the precision by using this method.
Junqiang Han +3 more
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Performance analysis of BDS B1C/B2a PPP using different models and MGEX products
Survey Review, 2022Mengfei Sun +5 more
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