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Ireneusz Ogórek, Marek Grzegorzewski and Maciej Maciejowski

Abstract

At present, the Earth’s magnetic field (geomagnetic field) undergoes considerable variations. The use of towers measuring areal variations in magnetic intensity may provide additional support for aircraft navigation. This paper presents the idea of using magnetometers for supporting GNSS as well as for creating a landing system based on magnetic field variations.

Open access

Marek Grzegorzewski and Karol Krzysztof Śliwak

Abstract

Current RNAV GNSS approach procedures are widely used in Europe and worldwide. The development of the GNSS systems as well as the study and control of satellite signals result in the increasing number of approach types with increasingly higher demands and lower operating minimums. LPV-200 is the precision approach with the most stringent requirements, and operational minimums of up to 200ft. For the purposes of Part I of this paper static measurements were performed in order to compare the signal characteristics with ICAO requirements. On the basis of the measurements′ results, it can be assumed that, within the analyzed period of time, the GNSS signal at the airport in Dęblin only partially met the requirements set for LPV-200 approaches. The data collected were processed and analyzed using Matlab environment.

Open access

Aliaksandr V. Charnavalau, Marek Kuźmicki and Adrian Grzegorzewski

Abstract

Summary Subject and purpose of work: The article describes a new subject of research into the history of economic thought, the international Pribuzhie region. The article discusses the history of the rise and development of economic science in the Pribuzhie region from the 8th to the 21st century, which is the subject of research. The aim of the article is to present a new perspective on the subject of research as well as the characteristics of the process of economic science in the Pribuzhie region. Materials and methods: The article uses a conventional method, which is a collection of historical, philosophical and economic methods of cognition, on the basis of which, in the context of a scientific program, the past of economic thought and relevant doctrines are examined, and their content is described. Results: The various historical stages in the development of the economic thought of the Pribuzhie region are described, as well as new, unpublished facts relating to individual economic doctrines. Conclusions: Political activity and public administration activities should involve economic education, which defines the essence of economic policy, its objectives and ways of realization in the practical sphere.

Open access

Marek Grzegorzewski, Anna Swiatek, Stanislaw Oszczak, Adam Ciecko and Janusz Cwiklak

ABSTRACT

The Satellite Base Augmentation System (SBAS) - EGNOS (European Geostationary Navigation Overlay Service) has been certified for Safety of Life (SoL) service for aircraft navigation since 2nd of March 2011. Unfortunately for the territory of Poland, located at the edge of EGNOS service area, the quality of the service corrections are still not sufficient for aircraft navigation requirements. Years 2012 and 2013 are forecasted as a maximum of solar activity in a 11-year solar cycle. This time period will be the chance to perform the first tests for the EGNOS Safety of Life service quality in disturbed ionospheric conditions. During the previous maximum of solar activity, the storm on 30 October 2003 resulted in the inability to use WAAS corrections for more than 12 hours. This was caused by a very large gradient of disturbances and its’ very sharp boundaries - vertical TEC (VTEC) varied from ~ 40 to ~ 120 TECU (TEC units) within an hour (over ~ 150 km distance). These circumstances gave the opportunity to carry out the test flights to examine the navigation parameters obtained for EGNOS SoL service in disturbed ionospheric conditions. The paper presents project proposal of study and analyses of such fundamental navigation parameters as: accuracy of determined position, availability, continuity and integrity, determined for selected disturbances in relation to quiet conditions. It can give a possibility to estimate of the quality of EGNOS SoL service in Polish airspace during the different phases of flight and its resistance to critical ionospheric conditions.

Open access

Adam Ciećko, Marek Grzegorzewski, Stanisław Oszczak, Janusz Ćwiklak, Grzegorz Grunwald, Jan Balint and Stanislav Szabo

Abstract

The first PBN approach procedures in Slovakia became operationally effective at Bratislava and Košice airports as of 5 February 2015. The article presents the results of EGNOS Safety-of-Life Service preliminary examination in eastern Slovakia, just before official introduction of these procedures. The practical examination includes static test and test flight made with Cessna plane taking off at the airport in Bidovce — LZBD (just 16 km from international airport in Košice) and passing a route along eastern border of Slovakia. In this region the performance of EGNOS could be unsatisfactory due to lack of RIMS stations to the east from there. The experiment was performed on October 13, 2014 in cooperation of the Air Force Academy in Deblin, the Department of Aviation of Technical University in Košice and University of Warmia and Mazury in Olsztyn.