How to create a phase shifter using Fast Fourier Transform?

I need to shift a signal by 30 degree in simulink and I found that it can be done by Fast Fourier transform. I am not able to perform this solution.

Answer 1

[Kartikay Sapra]

Hi Gaurav,

The simplest method is to use the Phase Shift Block and specify the Phase Shift as '30' with the unit being 'deg'.

https://in.mathworks.com/help/simrf/ref/phaseshift.html

If it is required to use FFT/IFFT manually, the following link provides a complete explanation to achieve this:

https://in.mathworks.com/matlabcentral/answers/425655-how-to-do-a-phase-shift-of-a-signal-from-fft-output-data

For Simulink, you may create a MATLAB function block or create a sub-system for this approach.