how can convert time domain to frequency domain

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Muhammad Ismail
Muhammad Ismail 2021-1-22
回答： Walter Roberson 2021-1-22
hi i have problem to convert this time domain to frequency domain please help me
t = [ 0 : 0.001 : 3 ]';
x= 0.7*sin(2*pi*1*t)+0.1*sin(2*pi*50*t);
plot(t,x);
xlabel ("Time in Seconds");
title ("noise signal");
ylabel ("volt"); signal into

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回答（1 个）

Walter Roberson
Walter Roberson 2021-1-22
See fft and in particular the first example to see how to label the frequency bins

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