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Wyszukujesz frazę "reference stations" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Aspect of spatial location of permament GPS antennas by using visibility analysis
Autorzy:
Łubczonek, J.
Powiązania:
https://bibliotekanauki.pl/articles/224722.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
stacje referencyjne
lokalizacja stracji referencyjnych
reference stations
tration location reference
Opis:
Spatial configuration of DGPS permanent reference station elements has an effect on performance of the entire system. Arrangement of station elements, such as broadcast antenna and reference masts, requires allowance and further linking together number of technical, operational and terrain factors. Some technical and operational factors as a rule are determined by equipment manufacturer, however terrain factors are conditioned by terrain character of the future reference station site. Terrain character is a composition of its surface shape and all geographical features situated within the reference station surroundings. These factors often can cause certain difficulties during recommended elements' arrangement of the planned reference station. This elaboration presents applications of visibility analysis in planning spatial location of reference station GPS antennas. Visibility, or viewshed, analysis is usually available in various computer programs of Geographic Information System environment. It can be performed from any point situated in three-dimensional space of elaboration range. In the case of such elements as permanent GPS antennas, application of visibility analyses solves a problem of their location with allowance of surroundings and geographical features, which can cause limitation of visibility of satellites and occurrence of multipath. By performing this kind of analyses can be determined threedimensional position of GPS antennas, which meets such requirements as recommended horizon visibility.
Źródło:
Reports on Geodesy; 2009, z. 1/86; 77-87
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on mitigation of the distance-dependent biases in the network RTK technique
Autorzy:
Próchniewicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/224805.pdf
Data publikacji:
2011
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
reference stations
RTK networks
stacje referencyjne
sieci RTK
Źródło:
Reports on Geodesy; 2011, z. 1/90; 397-407
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of stability of ASG-EUPOS network coordinates
Autorzy:
Figurski, M.
Szafranek, K.
Wrona, M.
Powiązania:
https://bibliotekanauki.pl/articles/224724.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
system pozycjonowania satelitarnego
stacje referencyjne
satellite positioning system
reference stations
Opis:
ASG-EUPOS is Polish GNSS (Global Navigation Satellite System) Ground Based Augmentation System. The name stands for Active Geodetic Network European Position Determination System. It is multifunctional system of precise positioning consisting of more than 100 GNSS reference stations, which constitutes densification of global IGS (International GNSS Service) and regional EPN (European Permanent Network) GNSS (Global Navigation Satellite System) networks. Data collected on those stations are reference for many surveys (real time or postprocessing corrections - differential technology). ASGEUPOS will fulfill a role of main national geodetic frame and will enable conservation of ETRF (European Terrestrial Reference Frame) in Poland. That is one of the reasons why the system activity has to be monitored and controlled.
Źródło:
Reports on Geodesy; 2009, z. 1/86; 31-41
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations on the field of gravity in Polish tidal laboratories
Autorzy:
Barlik, M.
Bogusz, J.
Kaczorowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/224712.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
pole grawitacyjne
pomiary grawimetryczne
stacje badawcze
field of gravity
gravimetric measurements
reference stations
Opis:
Presently there are two laboratories in Poland investigating field of gravity. The Geodynamic Laboratory of Space Research Centre in Ksiaz is placed in the south-western part of Poland in horizontal galleries built in slope of the valley. In 1974 in the laboratory the measurements carried out with help of two quartz-horizontal pendulums equipped with photographic system of registration were begun. In 2002 in the laboratory the long water-tube tiltmeter was built. It is consisted of two perpendicular tubes 65- and 83-meter long, partially filled with water. In 2007 in the laboratory the relative gravimeter LaCoste&Romberg G-648 was installed. The Gravimetric Laboratory of Astro-Geodetic Observatory in Józefosław is placed in central part of Poland. It has been investigated tidal gravity changes since 1993 using first LC&R model G gravimeter, then D-model. Since 2001 laboratory is equipped with LC&R ET-26 meter. In 2005 the laboratory was equipped with FG5-230 gravimeter for monitoring of the absolute gravity variations. The paper presents current state-of-art of the researches aimed at investigation on field of gravity carried out by Polish scientific institutions.
Źródło:
Reports on Geodesy; 2009, z. 1/86; 43-52
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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