Phase error between two signals ?

Hello, i have two inputs

 V1=A1sin(wt)

and

V2=A2cos(wt+theta)

knowing that A1 is diffrent to A2 ... i want to find Theta how can i do that in simulink ? thanks in advance

[Birdman]

What do you mean by finding theta? Do you try to solve an equation?

[El Mehdi FADEL]

theta is the phase error between the inputs ... i want to detect this error ( finding Theta ) and correct it

[Birdman]

What have you done so far? I still don't understand what you want.

[El Mehdi FADEL]

i want to calculate this theta on simulink ... that's what i want to do ?

Answer 1

[Samar]

Hello @El Mehdi FADEL,

For calculating phase difference, you can use “Fourier” block to get amplitude and phase angle of each signal, and by subtracting the phase angles you will get the phase difference between your signals.

You can refer the documentation for more information. To refer the documentation, follow the listed steps:

1. Right click on the target block.
2. Click on the last option Help.

This question seems like the question given below in the link. The answers to the question given in the link below can be referred for more information.

www.mathworks.com/matlabcentral/answers/44830-how-to-measure-the-phase-difference-between-two-signals-in-simulink

Feel free to ask questions if any.