EC8491 Syllabus Communication Theory
EC8491 Syllabus Communication Theory Regulation 2017 Anna University free download. Communication Theory Syllabus EC8491 pdf free download.
UNIT I AMPLITUDE MODULATION 9 EC8491 Syllabus Communication Theory
Amplitude Modulation- DSBSC, DSBFC, SSB, VSB – Modulation index, Spectra, Power relations and Bandwidth – AM Generation – Square law and Switching modulator, DSBSC Generation – Balanced and Ring Modulator, SSB Generation – Filter, Phase Shift and Third Methods, VSB Generation – Filter Method, Hilbert Transform, Pre-envelope & complex envelope –comparison of different AM techniques, Superheterodyne Receiver
UNIT II ANGLE MODULATION 9 EC8491 Syllabus Communication Theory
Phase and frequency modulation, Narrow Band and Wide band FM – Modulation index, Spectra, Power relations and Transmission Bandwidth – FM modulation –Direct and Indirect methods, FM Demodulation – FM to AM conversion, FM Discriminator – PLL as FM Demodulator.
UNIT III RANDOM PROCESS 9 EC8491 Syllabus Communication Theory
Random variables, Random Process, Stationary Processes, Mean, Correlation & Covariance functions, Power Spectral Density, Ergodic Processes, Gaussian Process, Transmission of a Random Process Through a LTI filter.
UNIT IV NOISE CHARACTERIZATION 9
Noise sources – Noise figure, noise temperature and noise bandwidth – Noise in cascaded systems. Representation of Narrow band noise –In-phase and quadrature, Envelope and Phase – Noise performance analysis in AM & FM systems – Threshold effect, Pre-emphasis and de-emphasis for FM.
UNIT V SAMPLING & QUANTIZATION 9 EC8491 Syllabus Communication Theory
Low pass sampling – Aliasing- Signal Reconstruction-Quantization – Uniform & non-uniform quantization – quantization noise – Logarithmic Companding –PAM, PPM, PWM, PCM – TDM, FDM.
OBJECTIVES:
To introduce the concepts of various analog modulations and their spectral characteristics
To understand the properties of random process
To know the effect of noise on communication systems
To study the limits set by Information Theory
| Subject name | Communication Theory |
| Semester | 4 |
| Subject Code | EC8491 |
| Regulation | 2017 regulation |
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EC8491 Notes Communication Theory
EC8491 Important Questions Communication Theory