Wyniki wyszukiwania - BazTech

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The impact of troposphere correction for designation of the ellipsoidal height of aircraft at approach to landing procedure

Krasuski Kamil, Savchuk Stepan

Acta Mechanica et Automatica

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2019

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Vol. 13, no. 4

233--237

EN

The paper reports on research into the effect of the troposphere correction on the accuracy of the vertical component determination of an aircraft's flight as it approaches landing at Deblin Airport. The article presents ellipsoidal height value of the aircraft when the troposphere correction is considered in navigational calculations and when it is not taken into account. Accuracy of the aircraft positioning in the vertical plane using the SPP method is determined. The study shows that application of the troposphere correction in navigational calculations increases the accuracy of the vertical component determination by 25%–32%. The article and the study may serve as a valuable source of information for pilots, flight instructors and aircraft crews during training in operation and implementation of GNSS in aviation.

2

Geokinematical implications inferred from analysis of permanent stations in Central European region

Hefty J., Igondova M.

Reports on Geodesy

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2006

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z. 1/76

29-38

EN

GPS permanent stations situated in Central Europe region are systematically analyzed in order to investigate behaviour of long-term monitoring of horizontal position and ellipsoidal height. On the basis of data from more than 30 sites the quality of the station is evaluated. Stability of station is measured by variety of parameters: jumps and discontinuities of known but also of unknown origin, seasonal variations amplitudes and phases and diurnal coordinate variations. We estimate for each network station its main deterministic characteristics including identification of eventual jumps, their time of occurrence and magnitude, annual variations and site velocities. The set of criteria for defining "stable" permanent station is proposed.

3

Precyzyjny pomiar wysokości elipsoidalnej za pomocą GPS na obszarze ograniczonym siecią stacji permanentnych KRAW+ASG-PL

Góral W.

Geodezja / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

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2003

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T. 9, z. 2/1

217-223

PL

W artykule przedstawia się charakterystykę lokalnej sieci stacji permanentnych założonych na obszarze Górnośląskiego Zagłębia Węglowego oraz stacji KRAW. Podaje się podstawy teoretyczne algorytmów umożliwiających precyzyjne wyznaczenie refrakcji troposferycznej na obszarze ograniczonym siecią stacji permanentnych KRAW+ASG-PL. Przedstawiona metoda umożliwia wyznaczenie poprawki troposferycznej niezależnie od warunków atmosferycznych. Podaje się zakres prac nad programami komputerowymi umożliwiającymi precyzyjne wyznaczenie wysokości elipsoidalnej.

EN

In the paper characteristic features of local permanent GPS stations KRAW and ASG-PL in Upper Silesian Coal Basin are discussed. Theoretical basis of algorithms are given which enable precise determination of tropospheric refraction within the area of permanent GPS stations KRAW + ASG-PL. The given method is helpful in determining tropospheric correction independent of weather conditions. The scope of work on computer programs enabling precise determination of ellipsoidal height is presented.