Creating Fourier Analysis Code

Forthis task, generate some data sampled at 500 Hz. Form a signal containing a) 30 Hzsinusoidal signal with an amplitude of 5

b) 100 Hzsinusoidal signal with an amplitude of 2

c) Zero-mean random noise with a standard deviation of 1. The length of your data shall be 1 second

CODE:

t=0:0.0005:1.0;

y=sin(2*pi*30*t)+sin(2*pi*100*t);

y=y+2*randn(size(t));

title('Random Noise Corrupted Signal');

xlabel('Time(sec)');

Answer 1

[Swetha Polemoni]

Hi George Rodriguez,

It is my understanding that you want to analyze a composite signal i.e., sum of different frequency signals. You can do it using "fft". You may find this answer helpful.