After processing the 1DFFT, should directly input the 1DFFT output value (complex number) directly into the 2DFFT? Or take the phase of the real number and the imaginary number (that is, the atan operation) and then throw it into the 2DFFT for operation?
If it is directly entered into the 2DFFT for calculation, it seems unreasonable, because FFT should not include the imaginary number in the calculation. Is the value obtained in this way correct?
If it is a phase calculation(atan operation), I don’t seem to see this step in the program. Can you roughly explain where it is in the program?
