How to create a phase shifter using Fast Fourier Transform?

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Gaurav
Gaurav 2022-11-17
移动：Joel Van Sickel 2022-12-2
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.

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Kartikay Sapra
Kartikay Sapra 2022-11-22
移动：Joel Van Sickel 2022-12-2
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.

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