نتایج جستجو برای: glonass

تعداد نتایج: 533  

Journal: :Remote Sensing 2018
Xinyun Cao Shoujian Zhang Kaifa Kuang Tianjun Liu Kang Gao

When satellites enter into the noon maneuver or the shadow crossing regimes, the actual attitudes will depart from their nominal values. If improper attitude models are used, the induced-errors due to the wind-up effect and satellite antenna PCO (Phase Center Offset) will deteriorate the positioning accuracy. Because different generations of satellites adopt different attitude control models, t...

2013
Hagen F. Piotraschke

Die für Positionsbestimmungen mit hoher Genauigkeit (Sub-Meter bis Zentimeter) erforderlichen GNSS-Empfänger mit Trägerphasen-Messung sind in der Praxis üblicherweise mehrfrequenzfähig (zumeist L1+L2), im Markt jedoch so teuer, dass potenzielle Anwender häufig bereits an den Investitionskosten für die Hardware scheitern. Diverse L1-Empfänger mit Trägerphasen-Rohdatenausgabe sind aber relativ gü...

2010
C. W. Johnson

Concerns over the accuracy, availability, integrity and continuity of Global Navigation Satellite Systems (GNSS) have limited the integration of GPS and GLONASS for safety-critical applications. More recent augmentation systems, such as the European Geostationary Navigation Overlay Service (EGNOS) and the North American Wide Area Augmentation System (WAAS) have begun to address these concerns. ...

Journal: :International Journal of Computer Science, Engineering and Applications 2020

Journal: :JOURNAL OF APPLIED COMPUTING IN CIVIL ENGINEERING 2008

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