ANALOG COMMUNICATIONS

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Analog modulation technique: Introduction, Theory of Amplitude Modulation; AM Power calculations, AM Modulation with a Complex Wave, Theory of Frequency Modulation (FM); Spectra of FM Signals, Narrow Band and wide band FM, Theory of phase modulation, comparison of AM & FM, Comparison of PM & FM, Noise and frequency Modulation, Pre-emphasis and De-emphasis, AM Transmission/AM Reception: Introduction, Generation of amplitude modulation, basic principles of AM Generation; square law diode Modulation, suppressed carrier AM generation, Ring modulator, Balance modulator. Turned radio frequency receiver (TRF), Basic elements of AM-Super heterodyne receiver; RF amplifiers Characteristics-sensitivity, selectivity, image frequency rejection, Mixers Training and Alignment, Local Oscillator, IF Amplifier, AM Detectors; Enveloper diode Detector AGC, Am receiver using transistors communication receiver. Pulse modulation Transmission and reception: Introduction, Pulse amplitude Modulation (PAM), PAM modulator Circuit, Demodulation of Pam signals, Pulse Time Modulation(PTM), Pulse Width Modulation(PTM),Pulse Position Modulation(PPM), PPM demodulator, Information Theory Introduction, Measurement of Introduction, Measurement of Information, Entropy, Information Rate, Hartley Law, Noise in Information Carrying Channel and Shannon –Hartley Theorem.

Course Syllabus