Imaging for Physicists

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

0.5 1.5 2.5 3.5

S1 S1 S2 S1 2 S3 3

-3.5 -2.5 -1.5 -0.5

A