Calculating the spectrum of Radially progressing sine wave(like a ripple) using fft2

 ... It is expected  to  be a cylinder and its radial average should be a single peak but I am not getting it.Code file is attached.

Answer 1

[Drew Davis]

Your code was not attached. Please see the documentation for fft2 and fft to ensure you are calling the function properly

[Cleoto Wax]

Sorry Drew, I have attached the file now, check that and diagnose where the problem is.Thanks.