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Lecturer(s)
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Stifter Jiří, Ing. Ph.D.
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Hloušek Petr, Ing. Ph.D.
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Linhart Richard, Ing. Ph.D.
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Veřtát Ivo, Ing. Ph.D.
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Course content
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1. Communication channel, general scheme of communication system - examples of real systems, energy x information transmission, channel capacity 2. Transmission quantities in communication technology, basic acoustic quantities, properties of human hearing. 3. Human speech, sound / music signal, attenuation / linear distortion, nonlinear distortion, electroacoustic transducers. 4. Analog modulation amplitude, phase, frequency, discrete modulation pulse amplitude, position, width. 5. Transmission of digital signals over a communication channel, line codes, basic digital modulation, modulation, transmission rate, real transmission channel limitation, channel capacity theorem. 6. Digitization of analog signals, sampling, quantization, coding, PCM, PCM multiplex systems. 7. Optical communications - part 1 Communication metallic lines - summary of basic knowledge, substitute model, basic quantities, current use. Optical communication systems The nature of optical radiation, basic quantities. Block diagram of optical communication system, used transmission environments. Manufacture of optical fibers, optical cables. Light propagation in optical fibers, types of optical fibers. 8. Optical communications - part 2 Properties of optical fibers - attenuation, dispersion. Fiber optic splicing. Sources and detectors of optical radiation, modulation of optical radiation. WDM system, FTTx optical access networks. 9. Communication channel sharing Deterministic systems FDM, TDM, CDM, SDM Statistical systems ALOHA, CDM, Duplex, simplex Merging circuits, messages Dissemination of information through space and guidance Propagation velocity, shortening factor, wavelength, energy Propagation of electromagnetic waves, regularities of propagation Antennas, dipole, monopole, YAGI, LP, power supply, adaptation Use of frequency spectrum for electronic communications 10. Radio receivers Topology, directly and indirectly amplifying the receiver Sensitivity, selectivity Mixer, filters AM and FM demodulators Auxiliary systems of AVC, AFC receivers Stereo FM receiver - an example of an analog system 11. Mobile communication systems History of mobile communications Network topology, cellular network Signal processing, compression, security, channel sharing voice and data transmission GSM, EDGE, 3G UMTS, 4G LTE, 5G systems GSM - an example of a digital system 12. Satellite systems History of satellite systems Location and use of satellites, LEO, MEO, GEO Energy balance of satellite link and propagation time Examples of satellite communication systems, ASTRA, INMARSAT, IRIDIUM positioning principle, Doppler and rangefinder systems GPS, GALILEO, CDMA, Spread spectrum modulation Digital television History of TV, analog television, principle of raster image transmission, Signal compression JPEG, MPEG-2, MPEG-4, MP3 Digital television DVB-T, DVB-S, DVB-C, SFN
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Learning activities and teaching methods
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Seminar classes, Lecture
- Preparation for comprehensive test (10-40)
- 10 hours per semester
- Preparation for laboratory testing; outcome analysis (1-8)
- 5 hours per semester
- Preparation for an examination (30-60)
- 30 hours per semester
- Contact hours
- 39 hours per semester
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| prerequisite |
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| Knowledge |
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| describe basics of electronics, circuit theory and of electromagnetic field theory |
| use the basic mathematical and physical apparatus |
| describe an electrical circuit based on the theory of circuits |
| characterize at a basic level the behaviour of the electromagnetic field |
| explain basics of electronics circuits |
| Skills |
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| explain the function electronic circuits |
| implement simple electronic circuits |
| calculate the parameters of electrical circuits |
| apply the laws of theoretical electrical engineering |
| Competences |
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| N/A |
| N/A |
| N/A |
| learning outcomes |
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| Knowledge |
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| characterize transmission quantities |
| describe the communication channel |
| explain analog modulation |
| describe the digitization of analog signals |
| describe the sharing of communication channels |
| explain the principle of a radio receiver |
| characterize mobile communication systems |
| explain the principle of digital television |
| characterize satellite systems |
| Skills |
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| select baud rate |
| apply appropriate signal modulation |
| perform signal digitization |
| choose a suitable optical communication system |
| analyze the dissemination of information through the communication channel |
| apply appropriate positioning principles |
| Competences |
|---|
| N/A |
| N/A |
| teaching methods |
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| Knowledge |
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| Lecture |
| Skills |
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| Lecture |
| Laboratory work |
| Seminar classes |
| Competences |
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| Lecture |
| assessment methods |
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| Knowledge |
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| Combined exam |
| Test |
| Skills |
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| Combined exam |
| Skills demonstration during practicum |
| Competences |
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| Combined exam |
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Recommended literature
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Národní kmitočtová tabulka : příloha k Jednotnému pravidlu č. 2/R/2000. Praha : NADATUR, 1999. ISBN 80-7270-002-2.
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Český, Milan. Antény pro příjem rozhlasu a televize. Vyd. 1. Praha : SNTL, 1969.
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Dobeš, Josef; Žalud, Václav. Moderní radiotechnika. Praha : BEN - technická literatura, 2006. ISBN 80-7300-132-2.
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Prchal, Josef. Signály a soustavy. dotisk. Praha : ČVUT, 1986.
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Svoboda, Jaroslav. Telekomunikační technika : průřezová učebnice pro odborná učiliště a střední školy. Díl 1, zprávy, signály, přenosová prostředí. 1. vyd. Praha : Hüthig & Beneš, 1998. ISBN 80-901936-3-3.
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Žalud, V. Moderní radioelektronika. BEN, Praha, 2006. ISBN 80-7300-132-2.
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Žalud, V. Multimediální přenosy signálů. ČVUT, Praha, 1995. ISBN 80-01-01338-3.
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Žalud V. Multimediální přenosy signálů. ČVUT Praha, 1995. ISBN 80-01-01338-3.
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