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of 8
pro vyhledávání: '"Karel Ulovec"'
Autor:
M. Smutny, Karel Ulovec
Publikováno v:
Radioengineering. 2018 vol. 27, č. 1, s. 342-352. ISSN 1210-2512
Radioengineering, Vol 27, Iss 1, Pp 342-352 (2018)
Radioengineering, Vol 27, Iss 1, Pp 342-352 (2018)
Broadcasters need to decide on bitrates of the services in the multiplex transmitted via Digital Audio Broadcasting Plus system. The bitrate should be set as low as possible for maximal number of services, but with high quality, not lower than in con
Autor:
Frantisek Rund, Karel Ulovec
Publikováno v:
2018 28th International Conference Radioelektronika (RADIOELEKTRONIKA).
Monitoring of the audio content quality is important for Digital Audio Broadcasting. Although the subjective methods asses quality more reliably, the objective methods have to be considered when needed big amount of the repeated tests. The highest di
Autor:
Karel Ulovec
Publikováno v:
Radioengineering. 2015 vol. 24, č. 4, s. 1060-1070. ISSN 1210-2512
Radioengineering, Vol 24, Iss 4, Pp 1060-1070 (2015)
Radioengineering, Vol 24, Iss 4, Pp 1060-1070 (2015)
This paper deals with DRM (Digital Radio Mondiale) Plus and FM (Frequency Modulation) radio broadcasting systems coexistence. It brings results based on measurement of mutual interferences of each to other. Minimal necessary value of the signal to in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5396414f3caa77c85b4e31fd939a8958
https://hdl.handle.net/11012/51907
https://hdl.handle.net/11012/51907
Autor:
Karel Ulovec
Publikováno v:
2015 25th International Conference Radioelektronika (RADIOELEKTRONIKA).
The main aim of the paper is to evaluate interactions between digital and analog terrestrial audio broadcasting systems coexisting in the same frequency band. Analog FM radio broadcasting occupies VHF Band II. Digital Radio Mondiale (DRM) system offe
Autor:
Karel Ulovec, Stepan Matejka
Publikováno v:
Proceedings of 21st International Conference Radioelektronika 2011.
This contribution presents experimental results and conclusions of an experiment focused on the video signal transmission in the frequency bands allocated for the Short Range Devices (SRD). We restrict ourselves only to slow — moving mobile applica
Autor:
Karel Ulovec, Miroslav Vysin
Publikováno v:
20th International Conference Radioelektronika 2010.
This contribution describes Digital Video Broadcasting-Terrestrial and Digital Video Broadcasting-Handheld measuring software for personal computer connected with a spectral analyzer. The free of charge software could upgrade a radio measurement labo
Autor:
Karel Mikulastik, Karel Ulovec
Publikováno v:
2009 19th International Conference Radioelektronika.
This paper deals with coexistence of DRM digital audio and FM analog audio broadcasting systems. Both types of interference are considered - signal of DRM digital system interfered by FM analog broadcasting system signal and analog FM signal interfer
Autor:
Karel Ulovec, Karel Mikulastik
Publikováno v:
2007 17th International Conference Radioelektronika.
Digital radio broadcasting systems will intervene more and more our lives. Production of transmitter systems and various receivers' types will be very increasing in close time period. Design of radio networks requires wide knowledge of real system be