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noise

GATE Electronics & Communication · Random Processes and Noise · 2019-2019

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2019 Q45

Let a random process Y(t) be described as Y(t) = h(t) * X(t) + Z(t), where X(t) is a white noise process with power spectral density Sx (f) = 5 W/Hz. The filter h(t) has a magnitud...

hard
2019 Q47

A random variable X takes values -1 and +1 with probabilities 0.2 and 0.8, respectively. It is transmitted across a channel which adds noise N, so that the random variable at the c...

hard