ECE :: Signals and Systems
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The peak factor is
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Assertion (A): A half cycle of sine wave can be expressed as sum of sine wave and another sine wave shifted by T/2 where T is the time period.
Reason (R): The function u(t - t0) - u(t - t0 - T) is a gate function occuring at t = t0 and of duration T.
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The function δ' (t-b) is
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The Z inverse of the given Z transform is
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To plot frequency spectrum we draw two graphs viz |Fn| versus frequency and φn versus frequency.
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If f(t) is an even function, the coefficients Fn in the exponential form of Fourier series
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In Laplace transforms s = σ + jω. Which of the following represents true natue of s. Select your answer using the given codes
- σ has a damping effect
- σ is responsible for convergence of integral
f(t)e-st dt - σ has a value less than zero
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Assertion (A): If
Reason (R): Displacement in time domain by T becomes multiplication by e-st in s domain.
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