All the questions are related to linear system theory.(Book: Signals and systems 2nd edition) Q1. What is...

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Electrical Engineering

All the questions are related to linear system theory.(Book:Signals and systems 2nd edition)
Q1. What is difference between Fourier Series and FourierTransform?
Q2. What is difference between Fourier transform, Laplacetransform and Z transform?
Q3. Why we are interested in exponential signals?
Q4. How to understand causal system? If a LTI system isnon-causal, what does it mean in real life?
Q5. What is the difference of the LTI system output when theinput x(t)= exp(-2t) is changed to x(t)=exp(-2t)u(t)?
Q6. How to understand Region of convergence?
Q7. Why we need transforms?
Q8. After a continuous signal is converted to the discretesignal after sampling, what is the impact on the transform domainaccordingly?

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ANSWER FORQ1Fourier series and Fourier transform are both given byFourierThe main difference between them is Fourier series isapplied to Periodicsignals and Fourier transform was applied to NonPeriodic SignalsANSWER FORQ21For any continuous signal xtFourier transform can be givenasFor any discrete signal xnFourier transform can be given awhere N is the See Answer

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