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Friday, February 11, 2011

Educational videos of Signals and Systems




Download/Source url :
http://www.youtube.com/watch?v=Eknlx7zHBVo&feature=player_embedded

By Prof. S.C.Dutta Roy, Department of Electrical Engineering, IIT Delhi.


SIGNALS AND SYSTEMS SYLLABUS :

Source :http://jntuk.edu.in

UNIT I
SIGNAL ANALYSIS : Analogy between vectors and signals, Orthogonal signal space, Signal approximation using orthogonal functions, Mean square error, Closed or complete set of orthogonal functions, Orthogonality in complex functions, Exponential and sinusoidal signals, Concepts of Impulse function, Unit step function,
Signum function.


UNIT II
FOURIER SERIES REPRESENTATION OF PERIODIC SIGNALS : Representation of Fourier series,
Continuous time periodic signals, properties of Fourier series, Dirichlet’s conditions, Trigonometric Fourier
series and Exponential Fourier series, Complex Fourier spectrum


UNIT III
FOURIER TRANSFORMS : Deriving Fourier transform from Fourier series, Fourier transform of arbitrary signal, Fourier transform of standard signals, Fourier transform of periodic signals, properties of Fourier transforms, Fourier transforms involving impulse function and Signum function. Introduction to Hilbert
Transform.


UNIT IV
SIGNAL TRANSMISSION THROUGH LINEAR SYSTEMS : Linear system, impulse response, Response of a linear system, Linear time invariant (LTI) system, Linear time variant (LTV) system, Transfer function of a LTI system. Filter characteristics of linear systems. Distortion less transmission through a system, Signal
bandwidth, system bandwidth, Ideal LPF, HPF and BPF characteristics, Causality and Poly-Wiener criterion for physical realization, relationship between bandwidth and rise time.


UNIT V
CONVOLUTION AND CORRELATION OF SIGNALS : Concept of convolution in time domain and frequency domain, Graphical representation of convolution, Convolution property of Fourier transforms. Cross correlation and auto correlation of functions, properties of correlation function, Energy density spectrum, Parseval’s theorem, Power density spectrum, Relation between auto correlation function and energy/power spectral density function.Relation between convolution and correlation, Detection of periodic signals in the presence of
noise by correlation, Extraction of signal from noise by filtering.


UNIT VI
SAMPLING : Sampling theorem – Graphical and analytical proof for Band Limited Signals, impulse sampling,Natural and Flat top Sampling, Reconstruction of signal from its samples, effect of under sampling – Aliasing, Introduction to Band Pass sampling.


UNIT VII
LAPLACE TRANSFORMS :Review of Laplace transforms, Partial fraction expansion, Inverse Laplace transform, Concept of region of convergence (ROC) for Laplace transforms, constraints on ROC for various classes of signals, Properties of L.T’s relation between L.T’s, and F.T. of a signal. Laplace transform of certain signals using waveform synthesis.


UNIT VIII
Z–TRANSFORMS : Fundamental difference between continuous and discrete time signals, discrete time signal representation using complex exponential and sinusoidal components, Periodicity of discrete time usingcomplex exponential signal, Concept of Z- Transform of a discrete sequence. Distinction between Laplace, Fourier and Z transforms. Region of convergence in Z-Transform, constraints on ROC for various classes of signals, Inverse Z-transform, properties of Z-transforms.


TEXT BOOKS :
1. Signals, Systems & Communications - B.P. Lathi, BS Publications, 2003.
2. Signals and Systems - A.V. Oppenheim, A.S. Willsky and S.H. Nawab, PHI, 2nd Edn.


REFERENCES :
1. Signals & Systems - Simon Haykin and Van Veen,Wiley, 2nd Edition.
2. Network Analysis - M.E. Van Valkenburg, PHI Publications, 3rd Edn., 2000.
3. Fundamentals of Signals and Systems Michel J. Robert, MGH International Edition, 2008.
4. Signals, Systems and Transforms - C. L. Philips, J.M.Parr and Eve A.Riskin, Pearson education.3rd
Edition, 2004.
Educational videos of Signals and Systems Reviewed by creativeworld9 on 2:46 AM Rating: 5 Download/Source url : http://www.youtube.com/watch?v=Eknlx7zHBVo&feature=player_embedded By Prof. S.C.Dutta Roy, Department...

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