Using the DFT: Difference between revisions
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New page: Script for matlab: clear all; t=0:.01:1; T=0.20; ts=0:T:1; f1=2; f2=1/0.125; x = sin(2*pi*3*t); %this is the function plot(t,x); % plot the original signal X = fft(x); % take the DFT pause... |
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Script for matlab: | Script for matlab: | ||
clear all; | clear all; | ||
t=0:.01:1; | t=0:.01:1; | ||
T=0.20; | T=0.20; | ||
ts=0:T:1; | ts=0:T:1; | ||
f1=2; | f1=2; | ||
f2=1/0.125; | f2=1/0.125; | ||
x = sin(2*pi*3*t); %this is the function | x = sin(2*pi*3*t); %this is the function | ||
plot(t,x); % plot the original signal | plot(t,x); % plot the original signal | ||
X = fft(x); % take the DFT | X = fft(x); % take the DFT | ||
pause (2); | pause (2); | ||
plot (t,X); %plot the DFT of the signal | plot (t,X); %plot the DFT of the signal | ||
Revision as of 11:40, 12 November 2007
Script for matlab: clear all;
t=0:.01:1;
T=0.20;
ts=0:T:1;
f1=2;
f2=1/0.125;
x = sin(2*pi*3*t); %this is the function
plot(t,x); % plot the original signal
X = fft(x); % take the DFT
pause (2);
plot (t,X); %plot the DFT of the signal