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b) Create the magnitude plot and phase plot of the spectra (Fourier Transform) for t = 5, 10, 25 [seconds]. In other words, overlap three magnitude curves for t = 5, 10, 25 in one plot; and overlap three phase curves for t = 5, 10, 25 in the other plot.

b) Create the magnitude plot and phase plot of the spectra (Fourier Transform) for t = 5, 10, 25 [seconds]. In other words, overlap three magnitude curves for t = 5, 10, 25 in one plot; and overlap three phase curves for t = 5, 10, 25 in the other plot.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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please help.  here is my code but my professor said" it was not intended to start with the sinc function to generate the plots. Should define the rectangular pulse in the time domain and then perform the fft on that."  Please fix my code:

close all;
clear;

 
% Frequency range and increment for graph
f = -0.3:0.001:0.3;

 
% Establishing values for Tau and Fourier Transform functions
T1 = 5;
x1 = pi * f * T1;
M1 = (T1 * sin(x1)) ./ x1;

 
T2 = 10;
x2 = pi * f * T2;
M2 = (T2 * sin(x2)) ./ x2;

 
T3 = 25;
x3 = pi * f * T3;
M3 = (T3 * sin(x3)) ./ x3;

 

 
M1(isnan(M1)) = T1;
M2(isnan(M2)) = T2;
M3(isnan(M3)) = T3;

 
% Perform FFT and FFT shift for each signal
F1 = fftshift(fft(M1));
F2 = fftshift(fft(M2));
F3 = fftshift(fft(M3));

 
% Plot magnitude of the signals
figure(1)
plot(f, abs(M1), 'c', f, abs(M2), 'b', f, abs(M3), 'm');
xlabel('Frequency (Hz)');
ylabel('|x(f)|');
title('Magnitude Plot of Fourier Transform of x(t)');

 
% Plot phase using FFT and FFT shift
figure(2)
plot(f, rad2deg(angle(F1)), 'c', ...
f, rad2deg(angle(F2)), 'b', ...
f, rad2deg(angle(F3)), 'm');
xlabel('Frequency (Hz)');
ylabel('Phase (degrees)');
title('Phase Plot after FFT and FFT Shift');

Thank you I will like
b) Create the magnitude plot and phase plot of the spectra (Fourier Transform) for t = 5, 10, 25 [seconds]. In other words, overlap three magnitude curves for t = 5, 10, 25 in one plot; and overlap three phase curves for t = 5, 10, 25 in the other plot.
Transcribed Image Text:b) Create the magnitude plot and phase plot of the spectra (Fourier Transform) for t = 5, 10, 25 [seconds]. In other words, overlap three magnitude curves for t = 5, 10, 25 in one plot; and overlap three phase curves for t = 5, 10, 25 in the other plot.
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