How to measure the phase difference between two signals in simulink?

156 次查看（过去 30 天）

dimitris 2012-7-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/44830-how-to-measure-the-phase-difference-between-two-signals-in-simulink

评论： Gokul Krishnan 2024-6-11

I have two signals in my circuit and i would like to measure the phase difference between them. Is there a block i could use? If not, how can i measure this difference?

4 个评论
显示 2更早的评论隐藏 2更早的评论

Hamed Bahmani 2018-6-13

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.

amr mousa 2020-5-27

dear hamed

fourier block uses for Fund, dc. or harmonics, i want to measure the original signal angle, how can i do it ?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Rick Rosson 2012-8-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/44830-how-to-measure-the-phase-difference-between-two-signals-in-simulink#answer_55133

Try multiplying the two signals together, and then passing the result through a low pass filter.

3 个评论
显示 1更早的评论隐藏 1更早的评论

shatha hanya 2019-1-12

how does this methode give the phase difference ?

Sukvasant Tantikovt 2019-5-6

You may find the answer from https://en.wikipedia.org/wiki/Phase_detector#Analog_phase_detector

请先登录，再进行评论。

更多回答（2 个）

Hamed Bahmani 2018-6-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/44830-how-to-measure-the-phase-difference-between-two-signals-in-simulink#answer_324484

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.

4 个评论
显示 2更早的评论隐藏 2更早的评论

R Naveen Raj 2022-8-25

sara fathy 2022-11-3

This gives a different answer from the known way .... measuring from the graph directly!!

请先登录，再进行评论。

Getu Gabisa 2020-9-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/44830-how-to-measure-the-phase-difference-between-two-signals-in-simulink#answer_494848

Phase_difference_measurment.slx

Phase difference measurment

Its accuracy is based on the sampling time you use.By simply connecting in parallel you can measure phase differnce of any number of signales with resepect to a reference signal.

4 个评论
显示 2更早的评论隐藏 2更早的评论

Getu Gabisa 2022-9-2

@Mateo Morales Farias you can

Gokul Krishnan 2024-6-11

Hi I came across your model for measuring phase difference in one of my projects. Could you please give me an explanation of how this works ? I did not understand the state-flow chart

请先登录，再进行评论。

请先登录，再回答此问题。