Course detail

Radio Receivers and Transmitters

FEKT-CRPVAcad. year: 2013/2014

Students become familiar with architecture of analogue and digital radio-communication systems (block scheme, basic functions). Further, the function of analogue and digital circuitry used in radio-communication systems (amplifiers, oscillators, mixers, filters, modulators, demodulators, etc.) are described. At the end the students obtain basic information about recent radio broadcasting systems (FM, DAB, DRM).

Language of instruction

English

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

prof. Ing. Aleš Prokeš, Ph.D.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

The graduate is able (1) describe architecture of common analog and digital radio-communication systems, (2) explain function of selected analogue and digital circuitry used in radio-communication systems, (3), and orientate oneself in techniques used in recent radio broadcasting systems.

Prerequisites

Fundamentals of signal processing and theory of electronic circuits are required.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Techning methods include lectures and practical laboratories. Course is taking advantage of e-learning (Moodle) system.

Assesment methods and criteria linked to learning outcomes

Students can obtain 20 points for the activity in laboratory exercises. The final exam is honored by 80 points (maximally).

Course curriculum

1. Frequency bands. Basic architectures of radio receivers and transmitters with analogue and digital signal processing.
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, DRM.

Work placements

Not applicable.

Aims

Lectures are aimed to present architecture, main building block functions and basic parameter definitions of analogue and digital radio communication systems, to explain principles of function of the electronic circuitry used in analogue and digital radio systems and to show examples of recent radio systems

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

Evaluation of activities is specified by a regulation, which is issued by the lecturer responsible for the course annually.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

ROHDE, U., BATEMAN, A., WHITAKER, J. Communications Receivers: Dps, Software Radios, and Design, 3rd Edition. McGraw-Hill 2001. (EN)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC Bc. Bachelor's

    branch BC-EST , 3 year of study, winter semester, elective specialised

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

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.