how to do phase shift in simulink?

i have a signal and i want to phase shift it by 90 . how do i do it in simulink ?

Answer 1

[Hari]

Hi,

I understand that you want to phase shift a signal by 90 degrees using Simulink.

I assume you have an existing signal in a Simulink model, and you want to apply a 90-degree phase shift to it.

In order to phase shift a signal by 90 degrees in Simulink, you can follow the below steps:

Create a Simulink Model:

Open your Simulink model and identify the signal block you wish to phase shift. For demonstration, let’s assume it’s a “Sine Wave” block.

open_system('your_model'); % Open your existing Simulink model

Add a Phase Shift:

Use a “Transport Delay” block to introduce a delay equivalent to a 90-degree phase shift. Calculate the delay using the formula: Delay = (1/(4*Frequency)).

add_block('simulink/Continuous/Transport Delay', 'your_model/PhaseShift');
set_param('your_model/PhaseShift', 'DelayTime', '1/(4*frequency)'); % Set frequency accordingly

Connect the Blocks:

Connect the output of the signal block to the input of the “Transport Delay” block to apply the phase shift.

add_line('your_model', 'Sine Wave/1', 'PhaseShift/1');

Output the Shifted Signal:

Connect the output of the “Transport Delay” block to any downstream processing or visualization block, such as “Scope” or “To Workspace”.

add_block('simulink/Sinks/Scope', 'your_model/Scope');
add_line('your_model', 'PhaseShift/1', 'Scope/1');

Simulate and Verify:

Run the simulation to verify the phase-shifted signal output.

sim('your_model');

Refer to the documentation of “Transport Delay” block to know more about its usage:

• https://www.mathworks.com/help/simulink/slref/transportdelay.html

Hope this helps!