A white noise w (t) of power spectral density N0/2 A white noise w (t) of power spectral density N0/2 is applied to a Butterworth low-pass filter of order n, whose magnitude response is defined by (a) Determine the noise equivalent bandwidth for this low-pass filter, for the definition of noise equivalent bandwidth.) (b) What […]
Steady-state creep data taken for a stainless steel at a Steady-state creep data taken for a stainless steel at a stress level of 70MPa (10,000psi) are given If it is known that the value of the stress exponent n for this alloy is 7.0, compute the steady-state creep rate at 1250 K and a stress […]
A stationary process X (t) is applied to a linear time-invariant A stationary process X (t) is applied to a linear time-invariant filter of impulse response b (t), producing an output Y (t). (a) Show that the cross-correlation function RYX (t) of the output Y (t) and the input X (t) is equal to the […]
1. Which of the following is not generally classified as a passive activity? (Point 1. Which of the following is not generally classified as a passive activity? (Points : 2) an activity in which the taxpayer does not materially participate a limited partnership interest rental real estate a business in which the taxpayer owns an […]
A speech signal has a total duration of 10 s. A speech signal has a total duration of 10 s. It is sampled at the rate of 8 kHz and then encoded. The signal-to-(quantization) noise ratio is required to be 40 dB. Calculate minimum storage capacity needed to accommodate this digitized speech signal.
A sinusoidal signal of frequency A?0 = 104/2π Hz is sampled A sinusoidal signal of frequency A?0 = 104/2p Hz is sampled at the rate of 8 kHz and then applied to a sample-and-hold circuit to produce a flat-topped PAM signal s (t) with pulse duration T = 500Âľs (a) Compute the waveform of the […]
A stationary process X (t) has the following values for A stationary process X (t) has the following values for its autocorrelation function RX (0) = 1, RX (1) = 0.8, RX (2) = 0.6, RX (3) = 0.4 (a) Calculate the coefficients of an optimum linear predictor involving the use of three unit-delays. (b) […]
Consider a wideband PM signal produced by a sinusoidal Consider a wideband PM signal produced by a sinusoidal modulating wave Am cos (2pA?mt), using a modulator with a phase sensitivity equal to k p radius per volt. (a) Show that if the maximum phase deviation of the PM signal is large compared with one radian, […]
Consider a white Gaussian noise process of zero mean and Consider a white Gaussian noise process of zero mean and power spectral density N0/2 that is applied to the input of the high-pass RL filter shown in Figure. (a) Find the autocorrelation function and power spectral density of the random process at the output of […]
Consider a uniform quantizer characterized by the input—output r Consider a uniform quantizer characterized by the input—output relation illustrated Figure a. Assume that a Gaussian-distributed random variable with zero mean and unit variance is applied to this quantizer input. (a) What is the probability that the amplitude of the input lies outside the range -4 […]