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B. Tech. (New Scheme) Examination, 2024
(Fourth Semester)
SIGNAL AND SYSTEMS
EL-404
Note : Attempt all questions. All questions carry equal marks.
(a) What is meant by System ? Classify the different types of System.
(b) Explain exponential and sinusoidal signals.
Or
(a) Explain static and dynamic systems.
(b) Explain deterministic and random signals.
(a) What is meant by Fourier Series ?
(b) What is Discrete time Fourier transform ? Explain its properties.
Or
(a) Explain the different types of Random Variable.
(b) Explain about to cumulative distribution function and probability density function.
(a) Explain duality sinc and signum function.
(b) Compare between Sampling theorem and Aliasing.
Or
(a) Explain the principle of Laplace transform.
(b) Explain the properties of inverse laplace transform.
(a) Explain about to state variable analysis.
(b) Explain ROC in laplace transform.
Or
(a) What is the basic formula for the Z-transform ?
(b) Write concept phase delay.
(a) Explain ROC in Z-transform.
(b) Explain the properties of inverse Z-transform.
Or
(a) What is meant by Random Process ? Explain.
(b) Explain about cross-correlation function.
Explain the following (any three) :
(a) Periodic and aperiodic signals
(b) Continuous time Fourier transform.
(c) Solution of state equation
(d) Group delay
(e) Ergodicity.