how to shift a signal by 30 degree in simulink

how to shift a signal by 30 degree in simulink

Answer 1

[Hari]

Hi Mohamed,

I understand that you want to phase shift a signal by 30 degrees using Simulink.

I assume you have a sinusoidal signal in your Simulink model and you want to apply a 30-degree phase shift to it.

In order to phase shift a signal by 30 degrees in Simulink, you can follow the below steps:

Create or Open a Simulink Model:

Open your existing Simulink model or create a new one with the signal you want to phase shift. Assume it’s a “Sine Wave” block for this example.

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

Calculate the Delay for Phase Shift:

Determine the delay required for a 30-degree phase shift using the formula: Delay = (30/360) * (1/Frequency).

frequency = 1000; % Example frequency in Hz
delayTime = (30/360) * (1/frequency);

Add a “Transport Delay” Block:

Use a “Transport Delay” block to introduce the calculated delay to the signal.

add_block('simulink/Continuous/Transport Delay', 'your_model/PhaseShift');
set_param('your_model/PhaseShift', 'DelayTime', num2str(delayTime));

Connect the Blocks:

Connect the output of the signal block to 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 desired visualization or processing block, such as “Scope”.

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

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!

[Walter Roberson]

frequency = 1000; % Example frequency in Hz

Your version arranges for a delay of 30 degrees for one particular frequency, with other frequencies being delayed by different angles.

Other strategies would be needed to arrange a phase shift of 30 degrees for all frequencies . I'm not clear that such a thing is even possible (ignoring the meaninglessness of a phase shift for the constant component, frequency==0)