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On The Fundamental Aspects of Demodulation
Subhradeep Pal, B. N. Biswas
Pages - 86 - 96     |    Revised - 15-07-2012     |    Published - 10-08-2012
Volume - 6   Issue - 3    |    Publication Date - August 2012  Table of Contents
FM Signal, TEO, Instantaneous Frequency, Energy Separation Algorithm, Mixer
When the instantaneous amplitude, phase and frequency of a carrier wave are modulated with the information signal for transmission, it is known that the receiver works on the basis of the received signal and a knowledge of the carrier frequency. The question is: If the receiver does not have the a priori information about the carrier frequency, is it possible to carry out the demodulation process? This tutorial lecture answers this question by looking into the very fundamental process by which the modulated wave is generated. It critically looks into the energy separation algorithm for signal analysis and suggests modification for distortionless demodulation of an FM signal, and recovery of sub-carrier signals
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Mr. Subhradeep Pal
Sir J.C. Bose School of Engineering - India
Professor B. N. Biswas
Sir J.C. Bose School of Engineering - India