Question

In: Electrical Engineering

Determine the Nyquist rate for signal x(t)defined as follows: x(t)= 20,000sinc(20,000*pi*t) Plot the spectrum of the...

Determine the Nyquist rate for signal x(t)defined as follows:

x(t)= 20,000sinc(20,000*pi*t)

Plot the spectrum of the sampled signal and check whether aliasing error exists for the following values of the sampling rate (ws): 40,000*pi, 20,000*pi,10,000*pi

Solutions

Expert Solution


Related Solutions

energy and power of signals. (a) Plot the signal x(t) = e−tu(t) and determine its energy....
energy and power of signals. (a) Plot the signal x(t) = e−tu(t) and determine its energy. What is the power of x(t)? (b) How does the energy of z(t) = e−∣t∣, −∞ < t < ∞, compare to the energy of z1(t) = e−tu(t)? Carefully plot the two signals. (c) Consider the signaly(t) = sign[xi(t)] =  1 xi(t) ≥ 0 −1 xi(t) < 0 for −∞ < t < ∞,i = 1,2. Find the energy and the power of...
Determine the Fourier transform of a Gaussian pulse defined as x(t) = e?t2. Plot both x(t) and X(?).
Determine the Fourier transform of a Gaussian pulse defined as x(t) = e?t2. Plot both x(t) and X(?).
Write the matlab command to sample the following signals at nyquist frequency 1.x(t)=3cos(2*pi(400)t +0.3*pi) 2.x(t)=cos^2(300*pi*t)
Write the matlab command to sample the following signals at nyquist frequency 1.x(t)=3cos(2*pi(400)t +0.3*pi) 2.x(t)=cos^2(300*pi*t)
plot the double sided amplitude and phase spectrum for the following signal. f(t) = e^(-2|t| )
plot the double sided amplitude and phase spectrum for the following signal. f(t) = e^(-2|t| )
One period of a real-time signal x(t) =2Sin(20*pi*t) , starting at t=0, has to be processed...
One period of a real-time signal x(t) =2Sin(20*pi*t) , starting at t=0, has to be processed in a 4-bit digital computer. The A/D card have a sampling frequency of 55Hz and the input range is +/- 2Volts. i) What are the values recorded in the sampled signal x[n] ? ii)What is the resulting quantized signal? iii)What is the resulting digitized/coded signal? iv)If the sampled signal x[n] was filtered using a moving average filter of length 3 , what would the...
4. For a signal x(n)=sin(2*pi*n/3) defined for n=0to7, evaluate the Fast Fourier Transform using signal flow...
4. For a signal x(n)=sin(2*pi*n/3) defined for n=0to7, evaluate the Fast Fourier Transform using signal flow graph. (Use decimation in frequency Algorithm)     
For a signal x(n)=sin(2*pi*n/5) defined for n=0to7, evaluate the Fast Fourier Transform using signal flow graph....
For a signal x(n)=sin(2*pi*n/5) defined for n=0to7, evaluate the Fast Fourier Transform using signal flow graph. (Use decimation in Time Algorithm).                                               
Plot the following data and determine the average rate for the loss of reactant at t...
Plot the following data and determine the average rate for the loss of reactant at t = 25 sec. Enter the numerical answer with 2 significant figures, no units and in scientific notation. For example; .00126 M/min would be entered as 1.3E-3 (no spaces) 2 A(g) → B 2(g) Time(sec) [A]: (mol/L) 0.0: 3.20x10-5 10.0: 2.42x10-5 20.0: 1.95x10-5 30.0: 1.63x10-5 40.0: 1.40x10-5 50.0: 1.23x10-5 60.0: 1.10x10-5
Solve the nonhomogeneous heat equation: ut-kuxx=sinx, 0<x<pi, t>0 u(0,t)=u(pi,t)=0, t>0 u(x,0)=0, 0<x<pi
Solve the nonhomogeneous heat equation: ut-kuxx=sinx, 0<x<pi, t>0 u(0,t)=u(pi,t)=0, t>0 u(x,0)=0, 0<x<pi
Consider the Phillips curve: pi(t) = Epi(t) - 0.5(u(t) - 8), where pi(t) is inflation rate...
Consider the Phillips curve: pi(t) = Epi(t) - 0.5(u(t) - 8), where pi(t) is inflation rate at t, Epi(t) is expected inflation for t, and u(t) is unemployment at t. Now suppose the public has adaptive expectation: Epi(t) = pi(t-1), Epi(t+1) = pi(t), and so on. Inflation at time t-1 is pi(t-1) = 3%; the rate of unemployment u(t) at time t is at the natural level. The authorities decide to bring the unemployment rate to 6% from time t+1...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT