Signals and Systems - ECE Questions and Answers

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The two inputs to an analogue multiplier are x(t) and y(t) with fourier transforms X(f) and Y(f) respectively. The output Z(t) will have a transform Z(f) given by

X(f). Y(f)

X(f)+ Y(f)

X(f) / Y(f)

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The units of the spectrum obtained be Fourier transforming the covariance function of a stationery Stochastic Process is

Power per Hz

energy per Hz

Power per sec

Energy per second

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FIR digital filter having __________ stability than FIR filter.

good stability

poor stability

stability not guarnteed

poor stability

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If v(t) = 0 for t < 0 and v(t) = e ^-at for t ≥ 0, V(jω) =