How to find the period of the attached signal in simulink?

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Franck Joel Simo
Franck Joel Simo 2019-5-9
Hallo everyone, i would like to find the period of a signal whose the frequency changes over the time. I have an idea how to do it. By measuring the time corresponding to two consecutives peaks values of the signal. the difference of the both times correspond to the period. I want to implement it in Simulink, not in Matlab. i dont know which block i should use. any idea??i have attached above one example of a signal whose the frequency changes over time.
Thanks in Advance

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