Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Pelc-Mieczkowska, R." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Reliable Technique of GNSS/RTK Positioning under severe observational conditions
Autorzy:
Bakuła, M.
Pelc-Mieczkowska, R.
Powiązania:
https://bibliotekanauki.pl/articles/224941.pdf
Data publikacji:
2011
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
GNSS
RTK
pozycjonowanie precyzyjne
precise positioning
Opis:
Nowadays GNSS/RTK positioning is a very efficient technique for determination of coordinates especially when it is based on permanent reference stations. It allows every land surveyor to do his work easily and efficiently. However there are some situations when the use of RTK technique makes some difficulties, especially if the GNSS receiver has no full availability for satellites. It is well know that obstructions caused by tress, buildings, power lines etc., limit satellites availability. In those situations gross errors can appear. In order to avoid misleading coordinates occurring we can use more than one receiver has no full availability for satellites. It is well known that obstructions caused by tress, buildings, power lines etc. limit satellite availability. In Those situations gross errors can appear. In Order to avoid misleading coordinates occurring we can use more than one receiver. The paper presents practical tests and description of the GNSS/RTK technology based on the simultaneous use of three different GNSS receivers for the specific control points. Three different GNSS/RTK receivers can be placed on a special mounting beam and additionally RTK positions are send in real-time to a computer. The software on the computer analyses not only the precision but also the accuracy of determined RTK positions. In effects that solution can allow obtaining reliable coordinates even if observational GNSS conditions are very severe.
Źródło:
Reports on Geodesy; 2011, z. 2/91; 67-73
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy and precision of RTK positioning under forest conditions
Autorzy:
Pelc-Mieczkowska, R.
Bakuła, M.
Powiązania:
https://bibliotekanauki.pl/articles/224466.pdf
Data publikacji:
2011
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
RTK positioning
measurement accuracy
forest
pozycjonowanie RTK
dokładność pomiarów
las
Opis:
The paper discusses the issue of relation between the accuracy and precision of GNSS/RTK measurements conducted at points with limited visibility of satellites. Field experiments were conducted from 2005 until 2010 on forest points characterised with different intensities of obstructions. The results of measurements obtained showed, which is characteristic for forest conditions, high precision but the accuracy of the results obtained ranged from under a centimetre to even a few metres. The analyses presented in this paper show that obtaining accurate coordinates from RTK positioning under forest conditions is possible but a method to eliminate gross errors must be developed.
Źródło:
Reports on Geodesy; 2011, z. 1/90; 377-382
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GNSS measurement techniques applied to establish a detailed control network based on the „Termy Warmińskie” example object
Autorzy:
Pelc-Mieczkowska, R.
Pająk, K.
Pająk, P.
Powiązania:
https://bibliotekanauki.pl/articles/298186.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
GPS measurement
terrain obstacle
POZGEO
POZGEO-D
control network
Opis:
This paper covers the issue of the establishment of a detailed control network for the realization of a construction survey pursuant to existing legislation, in particular: The Regulation of the Minister of Interior and Administration of November 9, 2011 on establishing technical standards of topographic surveys and processing of the results and submitting them to pzgik. (published in Polish: Rozporządzenie Ministra Spraw Wewnętrznych i Administracji z dnia 9 listopada 2011 w sprawie standardów technicznych wykonywania geodezyjnych pomiarów sytuacyjnych i wysokościowych oraz opracowywania i przekazywania wyników tych pomiarów do pzgik). Using the example of a detailed control network for the realization of the construction survey on the basis of the „Termy Warmińskie” object, various methods of GNSS observation processing were analysed and compared. The issue of the influence of some observation obstructions on the precision and accuracy of the results was also considered.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2014, 17(1); 15-29
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of AHRS algorithm designed for platform independent IMU attitude alignment
Autorzy:
Tomaszewski, D.
Rapiński, J.
Pelc-Mieczkowska, R.
Powiązania:
https://bibliotekanauki.pl/articles/106763.pdf
Data publikacji:
2017
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
attitude alignment
AHRS
integrated navigation
GPS/IMU
nawigacja zintegrowana
Opis:
Nowadays, along with the advancement of technology one can notice the rapid development of various types of navigation systems. So far the most popular satellite navigation, is now supported by positioning results calculated with use of other measurement system. The method and manner of integration will depend directly on the destination of system being developed. To increase the frequency of readings and improve the operation of outdoor navigation systems, one will support satellite navigation systems (GPS, GLONASS ect.) with inertial navigation. Such method of navigation consists of several steps. The first stage is the determination of initial orientation of inertial measurement unit, called INS alignment. During this process, on the basis of acceleration and the angular velocity readings, values of Euler angles (pitch, roll, yaw) are calculated allowing for unambiguous orientation of the sensor coordinate system relative to external coordinate system. The following study presents the concept of AHRS (Attitude and heading reference system) algorithm, allowing to define the Euler angles.The study were conducted with the use of readings from low-cost MEMS cell phone sensors. Subsequently the results of the study were analyzed to determine the accuracy of featured algorithm. On the basis of performed experiments the legitimacy of developed algorithm was stated.
Źródło:
Reports on Geodesy and Geoinformatics; 2017, 104; 33-47
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
RTK positioning under trees
Autorzy:
Bakuła, M.
Pelc-Mieczkowska, R.
Marchewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/225718.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
NTRIP
GPS
GPRS
RTK
OTF
Opis:
The paper presents the results of positioning by means of the RTK (Real Time Kinematic) method under forest conditions. The experiments were conducted over four consecutive days on hours when the configuration of GPS satellites over the test point was optimal. During the tests a Z-Xtreme receiver by Ashtech was used. On the first and the last day the corrections from the reference station were transmitted to the mobile receiver using the NTRIP application and on the other days the radio modem by SATEL was used for transmission of the corrections. The accuracy of measurement point coordinates in the GPS/RTK is expressed in centimeters; however, achievernent of that accuracy of results under forest conditions is highly difflcult as a consequence of the problem with ambiguity determination by the mobile receiver. Additionally, the mobile receiver is reached by GPS signals disturbed by signal multipath and cycle slip errors. The experiments presented in this paper indicate that despite very difficult measurement conditions it is possible to determine the coordinates of points under forest conditions with the accuracy of a few centimeters.
Źródło:
Reports on Geodesy; 2009, z. 2/87; 19-28
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies