Finding period T from a square signal in Simulink

Question

Marek Andrzej 2016-11-2

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https://ww2.mathworks.cn/matlabcentral/answers/310219-finding-period-t-from-a-square-signal-in-simulink

评论： Ashwini Bhondave 2021-10-21

I am looking for the period T of a square wave, in Simulink (variable width). Not from Scope block, I need it for further math operations.

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Franck Joel Simo 2019-5-7

Hi guy

I would to find the period of a Signal in Matlab Simulink. How do we do that. i really need your help. it is very urgent.Thanks in Advance

Ashwini Bhondave 2021-10-21

@Franck Joel Simo - did you find the answer of these? I need same help

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Answer 1

Mark McBroom 2016-11-6

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https://ww2.mathworks.cn/matlabcentral/answers/310219-finding-period-t-from-a-square-signal-in-simulink#answer_242221

Feed signal into triggered subsystem. Configure triggered subsystem to active on rising edge. In triggered subsystem, use a Digital Clock and Memory block to compute time between current and previous rising edge.

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Marek Andrzej 2016-11-8

Thank you for the answer! I tried but I don't really know where to connect what. Should I be feeding the signal into the trigger slot and substitute "in" with the digital clock?

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Answer 2

Marek Andrzej 2016-11-14

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https://ww2.mathworks.cn/matlabcentral/answers/310219-finding-period-t-from-a-square-signal-in-simulink#answer_243224

Ok I got it. Was a bit trickier. The time in the memory block was being added up so I branched two memory blocks in a series (to have the previous time) and subtracted them. This way the before iteration minus before before iteration is my output. Ergo the time between rising edge.