Analog Communication Study Notes
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CONTENTS :-
PART 1:- • Low Level Modulation • High Level Modulation • Square Law Modulation • Van der Bijl Modulation Generation OF DSB- SC Signal • Balanced Modulator • Ring Modulator # Image Frequency And Its Rejection # Tracking And Alignment # SHD Receiver Detection of AM Waves • Square Law Detector • Envelope Detector
PART 2:- FM Generation • Direct Method ( Varactor Diode Modulator) • Indirect Method ( Armstrong Method) FM Demodulation • Balanced Slope Detector • Foster Seeley Discriminater • PLL FM Demodulation ( with derivation)
PART 3:- Noise In Communication • Classification of Noise (Thermal Noise, partition Noise and Shot Noise etc.) • Noise Calculation (Thermal Noise) • Noise Bandwidth • SNR( Signal To Noise Ratio) • Noise Figure • Noise Temperature • Noise Figure In Cascaded Amplifier (Derivation) • Equivalent Noise Temperature Of Amplifier in Cascade • Noise Figure In Terms Of Equivalent Resistance