Course detail

Radio Receivers and Transmitters

FEKT-BRPVAcad. year: 2010/2011

This course is focussed on the architecture, main building blocks description and significant parameters definition of the analogue and digital radio communication systems. First part of this course is devoted to the description of the electronic circuitry used in radio systems e.g. mixers, oscillators, frequency synthesizers, analogue and digital signals modulators/demodulators, AVC and AFC circuits, RF power amplifiers, drivers, power combiners etc. Second part presents selected analogue radio systems e.g. FM stereo broadcasting or RDS. Third part deals with methods of digital signal processing used in the software radio receivers and transmitters. Last part comprises description of the T-DAB system.

Language of instruction

Czech

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Ing. Aleš Prokeš, Ph.D.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

Students become familiar with the architecture, main building blocks function and significant parameters definition of the radio communication systems, with the principles of function of the electronic circuitry used in analog and digital radio communication systems and with description of the selected radio systems and techniques such as FM stereo broadcasting, radio data system, digital audio broadcasting etc.

Prerequisites

The subject knowledge on the secondary school level is required.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

The laboratory practicals and final exam are evaluated

Course curriculum

1. Frequency bands. Basic radio receiver and transmitter architectures.
2. Radio receiver and transmitter parameters and measuring methods. Input circuits of radio receivers.
3. Mixers (additive, multiplicative, balanced). Oscillators (LC, crystal).
4. Frequency synthesizers, PLL, DDFS. Band-pass amplifiers. IF filters.
5. AM, FM and PM demodulators. MQAM and MPSK demodulators.
6. Auxiliary circuits, AGC, AFC. Stereo broadcasting, encoders and decoders. RDS.
7. Selective band-pass amplifier. Active RF power components. Amplifier classes and modes.
8. Matching, transformation and coupling circuits. Broadband power amplifiers.
9. AM, FM and PM modulators. MQAM and MPSK modulators. DDFS based modulators.
10. High efficiency RF power amplifiers, classes D, E and F.
11. Sampling of band-pass signals, A/D converters for radio receivers.
12. Digital signal processing techniques in wireless technology (filtering, demodulation, synchronization).
13. Software transceiver. Implementation techniques. OFDM, digital radio broadcasting DAB-T.

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with the architecture, main building blocks function and significant parameters definition of the analogue and digital radio communication systems, with the principles of function of the electronic circuitry used in analogue and digital radio systems and with description of the selected radio systems and techniques such as FM stereo broadcasting, radio data system, digital audio broadcasting etc.

Specification of controlled education, way of implementation and compensation for absences

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

CHIEN, Ch. Digital Radio on a Chip. Kluwer Academic Publishers, Norwell 2000 (EN)
PROKEŠ, A. Rádiové přijímače a vysílače. Laboratorní cvičení. Rádiové přijímače a vysílače. Laboratorní cvičení. FEKT VUT Brno, Ústav radioelektroniky: MJ Servis s.r. o, 2002. s. 1 ( s.)ISBN: 80-214-2211- 4. (CS)
PROKEŠ, A. Rádiové přijímače a vysílače. Přednášky. Rádiové přijímače a vysílače. Přednášky. FEKT VUT Brno, Ústav radioelektroniky: MJ Servis s.r.o., 2002. ISBN: 80-214-2263- 7. (CS)

Type of course unit

Lecture

39 hod., optionally

Teacher / Lecturer

prof. Ing. Aleš Prokeš, Ph.D.

Syllabus

Frequency bands. Analog and digital receiver architecture. Significant parameters.
Receiver input circuits. Selective tuned amplifiers.
Additive and multiplicative mixers. Mixers with spurious product reduction. Feedback LC and crystal oscillators. Voltage-controlled oscillators.
Frequency synthesis. Phase-locked loop. DDFS. IF amplifiers.
AM, FM and PM demodulators. MPSK, MQAM, FSK, GMSK demodulators. Carrier recovery and symbol timing recovery circuits.
Auxiliary receiver circuits. AVC and AFC circuits.
Analog and digital transmitters architecture. Significant parameters. Power amplifiers. A, B and C classes. High-efficiency power amplifiers, operating classes D, E and F. Power amlifier linearisation techniques.
AM, FM and PM modulators. MPSK, MQAM, FSK, GMSK modulators. Auxiliary transmitter circuits. Drivers. Power combiner.
Stereo broadcasting. Stereo coders and decoders. Radio Data System (RDS).
Digital signal processing used in the radio receivers and transmitters. Frequency downconversion, interpolation, decimation, frequency filtering, matched filtering, bandpass sampling, etc. Software radio.
Digital audio broadcasting T-DAB.

Laboratory exercise

26 hod., compulsory

Teacher / Lecturer

Ing. Petr Vágner, Ph.D.
Ing. Petr Šrámek
prof. Ing. Aleš Prokeš, Ph.D.

Syllabus

SNR and SINAD sensitivity of the radio receiver.
Characteristics of AGC circuitry
Characteristics of AFC circuitry.
Class A, B, and C power amplifier linearity and efficiency.
Stereo decoder characteristic.
Short Wave transmitter spectrum properties in the case of AM, FM, CW, and SSB modulation.
Receiver noise figure.
Digital modulation properties.

VUT

Faculties

University Institutes

Parts

Radio Receivers and Transmitters

Type of course unit