Digital Communication Technique

Lecturer:

Tutor:

Supervisor:

Department of Radioelectronics

Synopsis:

Subject „Digital communication technique“ deals with digital subsystems in communication and ranging systems. Undergraduates acquire knowledge about implementation of the digital signal processing in communications and radar as digital coding, modulation, error correction, synchronisation for communication and ranging.

Requirements:

Basic knowledge of the digital circuit and its connection.

Syllabus of lectures:

1. Introduction, communication's chain, digitising its circuits, necessary performance

2. Baseband, IF and RF signal digitising, ADC, DAC features

3. Architecture of the high speed A/D, increasing it's performance

4. Communication and ranging systems digital technology based on DSP and CPU

5. Digital filters DSP implementation

6. Effective implementation by reducing and increasing of the sampling rate

7. Increasing of computational performance, parallel implementation

8. Implementation circuits in IF and RF band by programmable logic

9. Channel Code/Decode, error correction and equalisation implementation

10. Digital frequency synthesis, modification for modulation

11. Composite codes generators. Gold and JPL codes

12. Baseband, IF and RF signals processing. Modulation, demodulation

13. GSM, GPS and cellular PCS chipsets, features and applications

14. Architecture of the digital receivers

Syllabus of tutorials:

1. Introduction to program MATLAB

2. Properties digitising IF signal and RF signal

3. Dynamic and noise characteristics in baseband

4. Design filter FIR

5. Resampling of the signal, calculation SNQR

6. Dynamic and noise characteristics DDS

7. Decimation and interpolation of signals

8. Simulation code independence, Goldovy codes

9. Searching coded signal

10. Design of the modulator and detection unit FSK (Matlab)

11. Design modulator QPSK (Matlab)

12. Design filter with changing of the sampling rate

13. Frequency conversion of the signal in baseband

14. Digital receiver, design decimation and filtration, spectral properties

Study Objective:

In the course suppose the knowledge of the ground digital a microprocessor?s technique and digital signal processing.

Study materials:

1. Analog Devices Digital Signal Applications Using the ADSP Family. Volume New York: Prantice Hall. 1995

2. Analog Devices High Speed Design Technique. Norwood: Analog Devices. 1996

3. Skalický, P.: Číslicové systémy v radiotechnice. Praha : Vydavatelství ČVUT, 2004.

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 - Radio Communications, Navigation and Radar Systems- struc (compulsory course)