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Fourier Transforms

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Fourier Transforms:- Time domain and frequency domain representation of the signal, Fourier Transform and its properties, conditions for existence, Transform of Gate, unit step, constant, impulse, sine and cosine wave. Shifting property of delta function, convolution, time and frequency convolution theorems. Time domain and frequency domain representation of the signal  An electrical signal either, a voltage signal or a current signal can be represented in two forms: Two types of representations follow:  Time Domain representation -: In time domain representation a signal is a time-varying quantity as shown in Figure 1. Figure 1:-  An arbitrary time domain signal Frequency Domain Representation : In the frequency domain, a signal is represented by its frequency spectrum as shown in Figure 2. Figure 2:- Frequency domain representation of time domain signal Fourier Transform and its properties Fourier Transform pair Fourier transform may be expressed as In the abo...
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Syllabus: Communication Engineering, BE EEE

SUBJECT: COMMUNICATION ENGINEERING  SEMESTER- 6th Subject Code: 3TBEX 604 Course: BE EEE Theory Max. Marks: 50,   Theory Min. Marks: 17 COURSE OBJECTIVE: The objective of this course is to get knowledge of – Fourier series, Need of modulation in a communication system, TRF rEEEiver & its limitations Satellite system block diagram in  Communication Engineering. Syllabus: Unit – I Fourier series, Fourier Transform and its properties, Probability, random  variables & their moments, their significance, convolution, auto correlation, cross Correlation & power spectral density, Gaussian & Rayleigh probability density function, mean, variance & standard deviation, central limit theorem, voltage & Power decibel scales. Signal Processing: Types of signal, deterministic & random, periodic & non-Periodic, analog & discrete, energy & power signals, Representation of sinusoid in different forms & their conversion. Unit – II Need o...
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