PLEASE ANSWER ASAP a- Evaluate fft , X(k), of the sequence x(n) defined as x(0)=0.8,...
PLEASE ANSWER ASAP
- a- Evaluate fft , X(k), of the sequence x(n) defined as x(0)=0.8, x(1)=0.4, x(2) = -0.4 and x(3) = -0.2.
b- Verify your calculation using Matlab.
Homework Answers
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PLEASE ANSWER ASAP
a- Evaluate fft , X(k), of the sequence x(n)
defined as x(0)=0.8,...
1. Consider the following sequence (The bold large size element is at n = 0) x(n)...
1. Consider the following sequence (The bold large size element is at n = 0) x(n) = { ----- 0,0,01, 1, 1, 1, 1, 0, 0, 0------}. It has the period of N=8. a. Find (in closed form) and sketch the complex exponential Fourier series coefficients (Magnitude and Phase). Verify using Matlab. Include code and graphics. b. Find the energy in this sequence first using the sequence in the time domain, and then using the DTFS coefficients. Verify using Matlab....
The DFT is a sampled version of the DTFT of a finite-length sequence; i.e., N-1 (P9.25-1) Furthermore, an FFT algorithm...
The DFT is a sampled version of the DTFT of a finite-length sequence; i.e., N-1 (P9.25-1) Furthermore, an FFT algorithm is an efficient way to compute the values X Now consider a finite-length sequence xin] whose length is N samples.We want to evaluate X(z) the z-transform of the finite-length sequence, at the following points in the z-plane where ris a positive number. We have available an FFT algorithm (a) Plot the points z in the z-plane for the case N-8...
It is suggested that if you have an FFT subroutine for computing a length-N DFT, the...
It is suggested that if you have an FFT subroutine for computing a length-N DFT, the inverse DFT of an N-point sequence X[k] can be implemented using this subroutine as follows: 1. Swap the real and imaginary parts of each DFT coefficient X[k]. 2. Apply the FFT routine to this input sequence. 3. Swap the real and imaginary parts of the output sequence. 4. Scale the resulting sequence by 1/N to obtain the sequence x[n], corresponding to the inverse DFT...
(30 points) Consider the transmitter of the Differential Pulse Code Modulation (DPCM) system with input sequence...
(30 points) Consider the transmitter of the Differential Pulse Code Modulation (DPCM) system with input sequence x(n) 13 3 2 5 8] when n-0 to 4. A 3-bit mid-riser quantizer and encoder shown in Fig. 1 where step size Δ 1 and a 2-order predictor with coefficients α -0.2 and a2 0.4 are used. 3. a) By hand calculation, find R(n), d(n), d(n),(n) and cn) for n-0 to 4, and complete the table below. 7l x (n) 3 3 258...
2. Consider the following sequence x(n) = cos (2n/3)sin(2ton/5). a. Is the sequence periodic? If yes,...
2. Consider the following sequence x(n) = cos (2n/3)sin(2ton/5). a. Is the sequence periodic? If yes, what is the period? If no, why not? Note: you need to show your work analytically but you can verify that your answer is correct by sketching the sequence using Matlab b. Find and sketch the complex exponential Fourier series coefficients (Magnitude and Phase). Verify using Matlab. Include code and graphics.
-Σ rinkin + ml. Sequence c[n] is defined as c[n] x(n] = { 1,-1, 1 } as x[k] and 5-point DFT of c[...
-Σ rinkin + ml. Sequence c[n] is defined as c[n] x(n] = { 1,-1, 1 } as x[k] and 5-point DFT of c[n] as c[k]. (i) Calculate C[1]? 「[I] = 1-e^(-%72%pi/5)+6 alculate the 4-point DFT of sequence Your last answer was interpreted as follows: I-e + e- Incorrect answer. ii) Calculate i [] is the conjugate operator) -96 Your last answer was interpreted as follows:-i Incorrect answer.
-Σ rinkin + ml. Sequence c[n] is defined as c[n] x(n] = {...
Problem 3 20 points Let f[n]- 1,2,1,0 Use MATLAB to compute the DFT F[k] and turn in the some com...
Problem 3 20 points Let f[n]- 1,2,1,0 Use MATLAB to compute the DFT F[k] and turn in the some comments and inclilcle the answer % Compute DFT from FFT x-[1 2 1 0] N-length(x) F-fft(x,N)
Problem 3 20 points Let f[n]- 1,2,1,0 Use MATLAB to compute the DFT F[k] and turn in the some comments and inclilcle the answer % Compute DFT from FFT x-[1 2 1 0] N-length(x) F-fft(x,N)
7. i) Let n and k be some given positive integers, and x a 1-dimensional NumPy...
7. i) Let n and k be some given positive integers, and x a 1-dimensional NumPy array of length n. Write a Python code that creates the 2-dimensional NumPy array which has k columns all identical to x. You may import numpy as np Perform the test case: ne5 k-3 x = np.arange(0,1,0.2) # the output should be [[. 0. 0.] [0.2 0.2 0.2] [0.4 0.4 0.4) (0.6 0.6 0.6) [0.8 0.8 0.8]] 7. ii) Let a, b, c be...
4. Show that the sequence of iterates r(k) defined by r(k) 1 +(rk)2 converges for an arbitrary ch...
4. Show that the sequence of iterates r(k) defined by r(k) 1 +(rk)2 converges for an arbitrary choice of x(0) є R. Carry out the first l0 itera- tions in Matlab, and comment on the order of convergence.
4. Show that the sequence of iterates r(k) defined by r(k) 1 +(rk)2 converges for an arbitrary choice of x(0) є R. Carry out the first l0 itera- tions in Matlab, and comment on the order of convergence.
Need ASAP Please !!!!!!! Write user defined MATLAB code for the following question. for all 3...
Need ASAP Please !!!!!!!
Write user defined MATLAB code for the following question. for all 3 parts a, b and c. Given the following data: x 0.6 0.7 0.8 0.9 1. fx) 5.2296 3.61552.7531 2.2717 2 find the second derivative f"(x) at the point x = 0.8. (a) Use the three-point forward difference formula. (b) Use the three-point backward difference formula. (c) Use the three-point central difference formula.
1. Consider the following sequence (The bold large size element is at n = 0) x(n) = { ----- 0,0,01, 1, 1, 1, 1, 0, 0, 0------}. It has the period of N=8. a. Find (in closed form) and sketch the complex exponential Fourier series coefficients (Magnitude and Phase). Verify using Matlab. Include code and graphics. b. Find the energy in this sequence first using the sequence in the time domain, and then using the DTFS coefficients. Verify using Matlab....
The DFT is a sampled version of the DTFT of a finite-length sequence; i.e., N-1 (P9.25-1) Furthermore, an FFT algorithm is an efficient way to compute the values X Now consider a finite-length sequence xin] whose length is N samples.We want to evaluate X(z) the z-transform of the finite-length sequence, at the following points in the z-plane where ris a positive number. We have available an FFT algorithm (a) Plot the points z in the z-plane for the case N-8...
It is suggested that if you have an FFT subroutine for computing a length-N DFT, the inverse DFT of an N-point sequence X[k] can be implemented using this subroutine as follows: 1. Swap the real and imaginary parts of each DFT coefficient X[k]. 2. Apply the FFT routine to this input sequence. 3. Swap the real and imaginary parts of the output sequence. 4. Scale the resulting sequence by 1/N to obtain the sequence x[n], corresponding to the inverse DFT...
(30 points) Consider the transmitter of the Differential Pulse Code Modulation (DPCM) system with input sequence x(n) 13 3 2 5 8] when n-0 to 4. A 3-bit mid-riser quantizer and encoder shown in Fig. 1 where step size Δ 1 and a 2-order predictor with coefficients α -0.2 and a2 0.4 are used. 3. a) By hand calculation, find R(n), d(n), d(n),(n) and cn) for n-0 to 4, and complete the table below. 7l x (n) 3 3 258...
2. Consider the following sequence x(n) = cos (2n/3)sin(2ton/5). a. Is the sequence periodic? If yes, what is the period? If no, why not? Note: you need to show your work analytically but you can verify that your answer is correct by sketching the sequence using Matlab b. Find and sketch the complex exponential Fourier series coefficients (Magnitude and Phase). Verify using Matlab. Include code and graphics.
-Σ rinkin + ml. Sequence c[n] is defined as c[n] x(n] = { 1,-1, 1 } as x[k] and 5-point DFT of c[n] as c[k]. (i) Calculate C[1]? 「[I] = 1-e^(-%72%pi/5)+6 alculate the 4-point DFT of sequence Your last answer was interpreted as follows: I-e + e- Incorrect answer. ii) Calculate i [] is the conjugate operator) -96 Your last answer was interpreted as follows:-i Incorrect answer.
-Σ rinkin + ml. Sequence c[n] is defined as c[n] x(n] = {...
Problem 3 20 points Let f[n]- 1,2,1,0 Use MATLAB to compute the DFT F[k] and turn in the some comments and inclilcle the answer % Compute DFT from FFT x-[1 2 1 0] N-length(x) F-fft(x,N)
Problem 3 20 points Let f[n]- 1,2,1,0 Use MATLAB to compute the DFT F[k] and turn in the some comments and inclilcle the answer % Compute DFT from FFT x-[1 2 1 0] N-length(x) F-fft(x,N)
7. i) Let n and k be some given positive integers, and x a 1-dimensional NumPy array of length n. Write a Python code that creates the 2-dimensional NumPy array which has k columns all identical to x. You may import numpy as np Perform the test case: ne5 k-3 x = np.arange(0,1,0.2) # the output should be [[. 0. 0.] [0.2 0.2 0.2] [0.4 0.4 0.4) (0.6 0.6 0.6) [0.8 0.8 0.8]] 7. ii) Let a, b, c be...
4. Show that the sequence of iterates r(k) defined by r(k) 1 +(rk)2 converges for an arbitrary choice of x(0) є R. Carry out the first l0 itera- tions in Matlab, and comment on the order of convergence.
4. Show that the sequence of iterates r(k) defined by r(k) 1 +(rk)2 converges for an arbitrary choice of x(0) є R. Carry out the first l0 itera- tions in Matlab, and comment on the order of convergence.
Need ASAP Please !!!!!!!
Write user defined MATLAB code for the following question. for all 3 parts a, b and c. Given the following data: x 0.6 0.7 0.8 0.9 1. fx) 5.2296 3.61552.7531 2.2717 2 find the second derivative f"(x) at the point x = 0.8. (a) Use the three-point forward difference formula. (b) Use the three-point backward difference formula. (c) Use the three-point central difference formula.
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