Communication Theory

The book contains: Generation and detection of AM wave-spectra-DSBSC Hilbert Transform Pre-envelope & complex envelope - SSB and VSB – comparison - Superheterodyne Receiver. Phase and frequency modulation-Narrow Band and Wind band FM - Spectrum - FM modulation and demodulation – FM Discriminator - PLL as FM Demodulator - Transmission bandwidth. Random variables Central limit Theorem Random Process Stationary Processes Mean Correlation & Covariance functions Power Spectral Density Ergodic Processes Gaussian Process Transmission of a Random Process Through a LTI filter. Noise sources and types – Noise figure and noise temperature – Noise in cascaded systems. Narrow band noise – PSD of in-phase and quadrature noise – Noise performance in AM systems – Noise performance in FM systems – Pre-emphasis and de-emphasis – Capture effect threshold effect. Entropy - Discrete Memoryless channels - Channel Capacity - Hartley - Shannon law - Source coding theorem - Huffman & Shannon - Fano codes.