Results 11 to 20 of about 25,636 (260)

Calibration of GLONASS Inter-Frequency Code Bias for PPP Ambiguity Resolution with Heterogeneous Rover Receivers

Remote Sensing, 2018
Integer ambiguity resolution (IAR) is important for rapid initialization of precise point positioning (PPP). Whereas many studies have been limited to Global Positioning System (GPS) alone, there is a strong need to add Globalnaya Navigatsionnaya ...
Yanyan Liu, Shengfeng Gu, Qingquan Li
doaj   +1 more source

The use of methods of geoinformation mapping for the study of woody vegetation of forest-steppe ecosystems of the Central Chernozem reserve [PDF]

Вопросы лесной науки, 2019
The methods of cartographic studies of the wood vegetation of the reserve, including the use of modern GIS technologies and satellite positioning devices, are presented.
O.V. Ryzhkov , G.A. Ryzhkova
doaj   +1 more source

Testing the Positioning Accuracy of GNSS Solutions during the Tramway Track Mobile Satellite Measurements in Diverse Urban Signal Reception Conditions

Energies, 2020
Mobile Global Navigation Satellite System (GNSS) measurements carried out on the railway consist of using satellite navigation systems to determine the track geometry of a moving railway vehicle on a given route.
Mariusz Specht, Cezary Specht, Andrzej Wilk, Władysław Koc, Leszek Smolarek, Krzysztof Czaplewski, Krzysztof Karwowski, Paweł S. Dąbrowski, Jacek Skibicki, Piotr Chrostowski, Jacek Szmagliński, Sławomir Grulkowski, Sławomir Judek   +12 more
doaj   +1 more source

Intersystem Bias in GPS, GLONASS, Galileo, BDS-3, and BDS-2 Integrated SPP: Characteristics and Performance Enhancement as a Priori Constraints

Remote Sensing, 2021
Global navigation satellite systems (GNSSs) have been booming in recent years, and the space segment of all four of the GNSSs, including BDS (BDS-3/BDS-2), Galileo, GPS, and GLONASS, has almost been fully deployed at present. The single point positioning
Lin Pan, Zhehao Zhang, Wenkun Yu, W. Dai
semanticscholar   +1 more source

GLONASS ambiguity resolution [PDF]

GPS Solutions, 2019
A new integer-estimable GLONASS FDMA model is studied and analysed. The model is generally applicable, and it shows a close resemblance with the well-known CDMA models. The analyses provide insights into the performance characteristics of the model and concern a variety of different ambiguity-resolution critical applications.
Teunissen, P.J.G. (author), Khodabandeh, A. (author)   +1 more
openaire   +3 more sources

Análise do GNSS PPP multi-constelações com uso dos sistemas GPS, GLONASS e Galileo

Revista Brasileira de Cartografia, 2020
Dentre os sistemas que compõem o GNSS, estão completamente funcionais o GPS e o GLONASS. Além disso, encontram-se em desenvolvimento o Galileo e o BeiDou, sendo que o Galileo dispõe de 17 satélites operantes.
Raiane Rintielle Vaz Menezes, William Rodrigo Dal Poz   +1 more
doaj   +1 more source

Evaluation of multi-GNSS high-rate relative positioning for monitoring dynamic structural movements in the urban environment

Geomatics, Natural Hazards & Risk, 2020
Skyscrapers cause both limited sky-view and multipath error when using Global Navigation Satellite System (GNSS) measurements for monitoring structural movements.
Mosbeh R. Kaloop, Cemal O. Yigit, Ahmed El-Mowafy, Mert Bezcioglu, Ahmet A. Dindar, Jong Wan Hu   +5 more
doaj   +1 more source

GPS and GLONASS observable-specific code bias estimation: comparison of solutions from the IGS and MGEX networks

Journal of Geodesy, 2020
Different from differential code biases, the observable-specific code biases (OSBs) directly describe the biases of individual pseudorange measurements, which provide full flexibilities for multi-GNSS code biases handling.
Ningbo Wang, Zishen Li, Bingbing Duan, U. Hugentobler, Liang Wang   +4 more
semanticscholar   +1 more source

Improved Method for GLONASS Long Baseline Ambiguity Resolution without Inter-Frequency Code Bias Calibration

Remote Sensing, 2018
Use of a frequency-division multiple access strategy causes Globalnaya Navigatsionnaya Sputnikovaya Sistema (GLONASS) receiving equipment to experience both inter-frequency phase bias (IFPB) and inter-frequency code bias (IFCB).
Jiasong Zhu, Yanyan Liu, Bing Wang, Shirong Ye   +3 more
doaj   +1 more source

Assessment Of GNSS Positioning Techniques In EGYPT [PDF]

Port Said Engineering Research Journal
This research delves into Global Navigation Satellite Systems (GNSS) positioning accuracy, focusing on GPS, GLONASS, and their combined utility to evaluate GLONASS as an independent system in case GPS is down. The study spans three phases.
Abd El-rahman Abd El- naeim, Ahmed Elhatab, Marwa Azzam, Rasha Mosaad, AHMED ELSHARKAWY   +4 more
doaj   +1 more source