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Consider a phase-locked loop consisting of a multiplier, Consider a phase-locked loop consisting of a multiplier, loop filter, and voltage controlled oscillator (VCO). Let the signal applied to the multiplier input be a PSK signal defined by s(t) = Ac cos [2pfct + kpm(t)] where kp is the phase sensitivity, and the data signal m(t) […]

1. Product costs and period costs The costs that follow were extracted from the acc 1. Product costs and period costs The costs that follow were extracted from the accounting records of several different manufacturers: 1. Weekly wages of an equipment maintenance worker 2. Marketing costs of a soft drink bottler 3. Cost of sheet […]

A voice-grade channel of the telephone network has a bandwidth A voice-grade channel of the telephone network has a bandwidth of 3.4 kHz. (a) Calculate the information capacity of the telephone channel for a signal-to-noise ratio of 30dB. (b) Calculate the minimum signal-to-noise ratio required to support information transmission through the telephone channel at the […]

All practical data compression and data transmission schemes All practical data compression and data transmission schemes lie between two limits set by the rate distortion function and the channel capacity theorem. Both of these theorems involve the notion of mutual information, but in different ways. Elaborate on the issues raised by these two statements. Is […]

A stationary, Guassian process X (t) with zero and power A stationary, Guassian process X (t) with zero and power spectral density Sx (f) is applied to a linear filter whose impulse response b (t) is shown in Figure. A sample Y is taken if the random process at the filter at time T. (a) […]

A zero-mean stationary process X (t) is applied to a A zero-mean stationary process X (t) is applied to a linear filter whose impulse response is defined by a truncated exponential. Show that the power spectral density of the filter output y (t) is defined by, where SX (f) is the power spectral density of […]

A stationary, Guassian process X (t) with mean μX and varia A stationary, Guassian process X (t) with mean ÂľX and variance s2X is passed through two linear filters with impulse responses b1 (t) and b2 (t) yielding processes y (t) and Z (t), as shown in Figure. (a) Determine the joint probability density function […]

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 […]