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Pre-Requisite: EC201 and MA206
Contact Hours and Credits : ( 3 -0- 0 ) 3
To develop a fundamental understanding on communication systems with emphasis on analog modulation techniques.
Basic blocks of Communication System. AM, Linear Modulation - DSB-SC, SSB and VSB. Frequency Translation, Frequency-Division Multiplexing, Methods of generation and detection.
Angle Modulation - Frequency and Phase modulation. Transmission Bandwidth of FM signals, Methods of generation and detection, FM Stereo Multiplexing, Super heterodyne receiver.
Tuner amplifiers - Design of Class A, B, AB, C, D, S and E power amplifiers. Use of power amplifiers in Transmission.
Circuits for generation and detection of AM, DSBSC, SSBSC, FM signal.
Noise in CW modulation systems - SNR calculations for synchronous detection of DSB and SSB and envelope detection of AM.SNR calculations for angle modulation system. Pre-emphasis and de-emphasis. Threshold effect. Noise in Communication subsystems - Internal and external noise.
Students are able to