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TLT-5206 Communication Theory, 5 cr |
Vesa Lehtinen, Mikko Valkama
Lecture times and places | Target group recommended to | |
Implementation 1 |
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Exam and personal project work. The course can be taken either for 5 or 7 credits. In the basic version (5 cr), the scope and level of the personal project works are more narrow than in the extended (7 cr) version.
NOTICE! *** 7 cr implementation is basically needed for those targeting to study transmission techniques in more detail. ***
The exam and the project work should be done during the same academic year.
Completion parts must belong to the same implementation
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The goal is to build basic understanding of signal level issues, signal analysis tools and signal processing techniques encountered and utilized in electrical communications systems.
Content | Core content | Complementary knowledge | Specialist knowledge |
1. | SIGNALS AND COMMUNICATION SYSTEMS ** signal spectrum and related concepts; ability to think and understand the behaviour of signals and systems in frequency domain; Fourier transform vs. correlation analysis and spectral density ** random signals and noise; 1st and 2nd order statistics and their significance; probability densities; random signals and spectral density ** signal distortion in transmission; various distortion types and their significance ** transmission system design and the crucial resources and boundaries; bandwidth and power | ||
2. | BANDPASS SIGNALS AND SYSTEMS ** understanding and expressing bandpass signals; envelope and phase functions; I/Q representation ** real and complex signals; lowpass equivalent signals and systems; analytic signals and Hilbert transform ** use of complex signals in communications systems; analysis vs. implementation | - analytic signals and Hilbert transform and their significance and applications in communications signal processing in general - complex filters and filtering | |
3. | ANALOG MODULATION ** the concept of carrier modulation; linear modulation techniques; AM, DSB, SSB; VSB; general I/Q modulation ** angle or exponential modulations; phase and frequency modulation ** modulated signals and detection; envelope detector; synchronous detector; frequency detector ** analysis of modulated signals and their performance; spectral contents; operation in noisy channels; effects of interfering signals ** various transmission environments and the selection of modulation | - detailed mathematical analysis of angle modulations - modulators and their circuit implementations - detectors and their circuit implementations - radio receivers and architectural aspects | |
4. | SIGNAL SAMPLING ** waveforms and their disrete-time samples; mathematical models for sampling; discrete sequence of numbers vs. impulse train model; spectral contents of sampled signals ** sampling theorem; lowpass vs. bandpass sampling | ||
5. | INTRODUCTION TO DIGITAL TRANSMISSION TECHNIQUES ** discrete information and analog channels; bits, symbols and waveforms ** baseband pulse amplitude modulation (PAM); line coding and Nyquist pulse shaping; symbol alphabets; intersymbol interference (ISI) ** carrier modulation in digital transmission; linear I/Q modulation; digital frequency modulation ** digital vs. analog transmission, pros and cons ** basics of information theory; channel capacity |
Type | Name | Author | ISBN | URL | Edition, availability, ... | Examination material | Language |
Book | Communication Systems | A. B. Carlson, P. B. Crilly, J. C. Rutledge | 0-07-112175-7 | TUT Bookstore, Published by McGraw-Hill | English | ||
Summary of lectures | Communication Theory -lecture notes | English |
Course | Mandatory/Advisable | Description |
SGN-1200 Signal Processing Methods | Advisable | |
TLT-5100 Introduction to telecommunications | Advisable |
Additional information about prerequisites
Or corresponding knowledge - in summary: basic knowledge in signals and linear systems is expected.
Course | Corresponds course | Description |
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Course home page: http://www.cs.tut.fi/kurssit/TLT-5206/
Description | Methods of instruction | Implementation | |
Implementation 1 | Lectures Excercises Practical works Laboratory assignments |
Contact teaching: 40 % Distance learning: 0 % Self-directed learning: 60 % |