Digital Communication Measurements

Lecturer:

Tutor:

Supervisor:

Department of Radioelectronics

Synopsis:

Parameters of analog and digital communication systems. Communication test instruments, sources of test signals, data sequences and noise. Measurement of noise parameters. Simulators of multiway propagation in communication channel. Measuring circuits components. Measurement of orthogonal digital modulation parameters (power, MER, EVM, BER, ...), measurement and analysis of vector and constellation diagrams. Signal analyzers, swept vs. FFT, conception and development.

Requirements:

Syllabus of lectures:

1. Parameters of analog and digital communication systems

2. Communication test instruments and sources of test signals

3. Noise sources and the measurement of noise parameters

4. PRBS test generators, standard formats (GSM, DVB)

5. Phase noise measurement methods

6. Simulators of multiway propagation in communication channel

7. Measuring circuits components, combiners and splitters, coupling and matching circuits

8. Measurement of orthogonal modulation parameters, MER, EVM, TEV, STEM, STED

9. BER of orthogonal modulations, measurement of quadrature error (QE), I/Q imbalance

10. Measurement and analysis of vector and constellation diagrams

11. Power parameters of digital communication systems, PEP, EPF, IPF, PSD, ACPR

12. Measurement of BER in communication systems

13. Phase jitter (Jitter, Wander), simulation and measurement, UI, TIE, MTIE and TDEV definition

14. Signal analyzer, swept vs. FFT, conception and development

Syllabus of tutorials:

1. Measurements on test signals sources, stability, spurious products

2. Direct digital synthesis (DDS), its parameters measurement, noise, spurious products

3. Measurement of orthogonal modulator, characteristics, quadrature error, noise immunity

4. Measurement of PCM parameters, distortion, quantization error, noise immunity

5. Measurement of delta-modulation parameters

6. Phase noise measurement

7. Measurement of connecting components, Wilkinson's splitter, directional coupler

8. Digital communication signals analysis in time domain, eye diagram

9. Digital communication signals analysis in frequency domain

10. Signal analyzer FFT, effect of window shape

11. Measurement of BER

12. Measurement of phase jitter, input, transmission and output parameters

13. Simulation of error in communication system, analysis, evaluation

14. Check measurement, report assessment, credits

Study Objective:

Study materials:

1. Clide, F., Coombs, Jr. Communications Network Test & Measurement Handbook. New York: McGraw - Hill, Inc. 1998

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Telecommunications and Radio-engineering - High-frequency and Microwave Technology- structured studi (compulsory elective course)
• Telecommunications and Radio-engineering - Opto-electric Systems- structured studies (compulsory elective course)
• Telecommunications and Radio-engineering - Radio Communications, Navigation and Radar Systems- struc (compulsory elective course)
• Telecommunications and Radio-engineering - Multimedia, Sound and Television Technology- structured s (compulsory elective course)
• Telecommunications and Radio-engineering - Telecommunications- structured studies (compulsory elective course)