Wyniki wyszukiwania - BazTech

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Advanced surface vehicles collision risk reduction system

Wydro K., Demozzi A., Jarkowski J.

Archives of Transport System Telematics

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2017

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Vol. 10, iss. 4

42--46

EN

An idea of the innovative enhanced vehicle collision preventing system is presented. The system is based on usage of real-time information about vehicles mutual positions, trajectories and movement, which will be collected by mobile sensor network created ad-hoc by vehicles entering a potentially colliding area. The system will particularly consider vehicles movements dynamics, procedures of secure approaching and passing-by processes as well as remote warnings about traffic obstacles ahead. Premises and assumption for possible procedures and algorithms referred to such a network functionalities involving dispersed mechanism of drivers behaviours coordination is analysed, taking into account also some possible and allowed level of automation of the autonomous control an steering of the vehicle. Moreover, a possibility of system cooperation with various brand contemporary equipment of ITS Advanced Driver Assistance Systems type is analyzed. Results of analysis will be presented first of all to traffic participants and to appropriate traffic management services.

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Technical Aspects Outline for the Strategy of Launching Digital Broadcasting in Poland on Wave Bands Below 30 MHz

Dusiński A., Jarkowski J.

Journal of Telecommunications and Information Technology

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2011

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nr 3

141-146

EN

The article discusses the state of art knowledge concerning the introduction of DRM in the world and prospects for its further development. It presents the possibility of introducing this system in Poland.

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The Influence of Meteorological Phenomena on Modern Satellite Systems

Bogucki J., Jarkowski J., Wielowieyska E.

Journal of Telecommunications and Information Technology

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2009

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nr 4

88-94

EN

The areas of attention, described in this paper, extend throughout the modern satellite systems. Future satellite systems are to be planned for the millimeter band, which has greater weather attenuation effects than until now used bands. This paper provides a brief overview of propagation factors on millimeter-band earth-satellite paths and requirements in relation to the need for specific types of propagation data.

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Telekomunikacja satelitarna

Bogucki J., Jarkowski J.

Elektronika : konstrukcje, technologie, zastosowania

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2008

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Vol. 49, nr 5

95-100

PL

W artykule opisano kierunki zmian w rozwoju telekomunikacji satelitarnej. Omówiono rozwój telekomunikacji satelitarnej od wczesnych lat 60., po współczesne inteligentne satelity.

EN

Development directions of satellite telecommunication are described in this paper. Satellite technology trend, from sixties to intelligent satellites, are also explained.

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Turbokody-granica marzeń

Hahn S., Jarkowski J.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

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2000

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nr 4

288-293

PL

Przedstawiono zasadę działania kanału transmisyjnego z zastosowaniem wynalezionych w roku 1993 turbokodów. Kody te pozwalają zbliżyć się do granicy teoretycznej przepustowości kanału przy transmisji w obecności szumu, wyznaczonej przez CIauda Shannona w roku 1948. Praca jest adresowana do szerokiego kręgu osób zainteresowanych, niekoniecznie specjalistów w dziedzinie kodowania. Dla specjalistów zamieszczono obszerną bibliografię. Opisano również w zwięzły sposób niektóre zastosowania turbokodów.

EN

The principles of digital transmission in the presence of noise using the recently invented (1993) turbo codes arę presented. The turbo codes have a performance in terms of bit error probability very close to the Shannon limit. In principle the paper is addressed to a large forum of nonspecialist in the coding theory. However a large bibliography Is addressed to specialists. A brief description of present and future applications is included.