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Fourier Transform (FT)
S1 has amplitude
a
and frequency
f
S2 has
a
/2 and 3
f
S3 = S1 + S2
S3 is two sine waves
of different
frequency
and
amplitude
The FT is shown
-3.5
-2.5
-1.5
-0.5
0.5
1.5
2.5
3.5
S1
S1
S2
S1
2
S3
3
A