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1
Content available remote Teoretyczne aspekty zastosowania monolitycznego analizatora obrazu do obserwacji gwiazd w wyznaczeniach astronomicznych
Bobkiewicz P.
Prace Wydziału Nawigacyjnego Akademii Morskiej w Gdyni
|
2008
|
Z. 22
5-16
PL
W artykule opisano niektóre aspekty zastąpienia obserwacji wzrokowych w wyznaczeniach astronomicznych obserwacją przy użyciu monolitycznego analizatora obrazu. Przedstawiono wpływ parametrów technicznych przykładowego analizatora zastosowanego w teodolicie elektronicznym na dokładność wartości wchodzących do redukcji, przy czym do niezbędnego minimum ograniczono informacje o analizatorach obrazu. Zasadniczą treść pracy stanowi opis modelu matematycznego przejścia z danych uzyskanych w wyniku obróbki obrazu na dane do redukcji oraz opis metody kalibracji analizatora w teodolicie. Wykorzystanie analizatora obrazu pozwala na automatyczną obserwację przejść gwiazd w polu widzenia optycznych urządzeń geodezyjnych. Zarejestrowany obraz zostaje poddany komputerowej obróbce z uwzględnieniem kierunku osi celowej urządzenia, w wyniku czego określa się równanie ruchu ciała w układzie horyzontalnym. Zaproponowany sposób automatyzacji obserwacji można zrealizować dzięki rozwojowi technologii układów optoelektronicznych i komputerów. Szczególne znaczenie w tym zastosowaniu mają małe wymiary i niski poziom szumów monolitycznych analizatorów obrazu oraz bardzo dobra dostępność komputerów o dużej mocy obliczeniowej, niezbędnej do obróbki obrazu.
EN
The article is describing some aspects of replacing visual observation in geodetic astronomical measurements with observation with help of the focal plane array. Some essential information about focal plane array are announced. The mathematical model of converting from data get as a result of processing of the image to data for reduction formulas is presented. Also the method of the calibration of the theodolite with focal plane array is described. An influence of technical parameters of the focal plane array applied in the theodolite on the accuracy of the measurements is analyzed.
2
Content available remote Testing of gravimetric quasigeoid by astronomical measurements
Mojzes M., Husar L., Janak J., Papco J., Czarnecki K., Barlik M., Bogusz J., Walo J.
Reports on Geodesy
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2006
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z. 4/79
203-211
EN
The current determination of quasigeoid is largely based on gravimetric observations, which in general do not cover areas equally. That causes decreasing in quality of quasigeoid determination in those areas that are sparsely covered (surveyed) by gravimetric measurements. This situation was occurred on territory of the Slovak Republic in the Tatra Mountains area where gravimetric observations were performed only in some valleys and crests and from Polish side were only applied average values of Bouguer gravity anomalies with a 5' x 7.5' grid spacing (10 km x 10 km) which were transformed to average free-air gravity anomalies. To testing precision of the determined gravimetric quasigeoid it's desirable to use independent method such as astronomical method. Essentially is concerned with comparison astronomical and gravimetric of vertical deflections in the given region and with modelling of the differences between astronomical and gravimetric vertical deflections.
3
Content available remote Testing of gravimetric quasigeoid by astronomical measurements
Mojzes M., Husar L., Janak J., Papco J., Czarnecki K., Barlik M., Bogusz J., Walo J.
Reports on Geodesy
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2004
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nr 2/69
157--166
EN
The current determination of quasigeoid is largely based on gravimetric observations, which in general do not cover areas equally. That causes decreasing in quality of quasigeoid determination in those areas that are sparsely covered (surveyed) by gravimetric measurements. This situation was occurred on territory of the Slovak Republic in the Tatra Mountains area where gravimetric observations were performed only in some valleys and crests and from Polish side were only applied average values of Bouguer gravity anomalies with a 5' x 7.5' grid spacing (10 km x 10 km) which were transformed to average free-air gravity anomalies. To testing precision of the determined gravimetric quasigeoid it's desirable to use independent method such as astronomical method. Essentially is concerned with comparison astronomical and gravimetric of vertical deflections in the given region and with modelling of the differences between astronomical and gravimetric vertical deflections.
4
Content available remote Testing of gravimetric quasigeoid by astronomical measurements
Mojzes M., Husar L., Janak J., Papco J., Czarnecki K., Barlik M., Bogusz J., Walo J.
Reports on Geodesy
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2004
|
nr 4/71
148--156
EN
The current determination of quasigeoid is largely based on gravimetric observations, which in general do not cover areas equally. That causes decreasing in quality of quasigeoid determination in those areas that are sparsely covered (surveyed) by gravimetric measurements. This situation was occurred on territory of the Slovak Republic in the Tatra Mountains area where gravimetric observations were performed only in some valleys and crests and from Polish side were only applied average values of Bouguer gravity anomalies with a 5' x 7.5' grid spacing (10 km x 10 km) which were transformed to average free-air gravity anomalies. To testing precision of the determined gravimetric quasigeoid it's desirable to use independent method such as astronomical method. Essentially is concerned with comparison astronomical and gravimetric of vertical deflections in the given region and with modelling of the differences between astronomical and gravimetric vertical deflections.
5
Content available remote Geodynamics of the Tatra Mountain. Report of WP 10.5
Czarnecki K., Mojzes M.
Reports on Geodesy
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2004
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nr 4/71
135--139
EN
The Report of WP 10.5 summarises the research activities in the period from 1.4.2003 to 31.3.2004. The research activities were concentrated to the determination of the preliminary relative velocity vectors and preliminary testing of gravimetric quasigeoid by astronomical measurements in the area of the Tatra Mountain.
6
Content available remote Geodynamics of the Tatra Mountain. Report of WP 10.5
Czarnecki K., Mojzes M.
Reports on Geodesy
|
2004
|
nr 2/69
89--93
EN
The Report of WP 10.5 summarises the research activities in the period from 1.4.2003 to 31.3.2004. The research activities were concentrated to the determination of the preliminary relative velocity vectors and preliminary testing of gravimetric quasigeoid by astronomical measurements in the area of the Tatra Mountain.
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