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How to generate a random frequency signal ?

How to generate a random frequency signal ?

How to generate a random frequency signal ?

(OP)
Hello

I am trying to generate in Simulink a random frequency triangle of period T, T being a uniform random number in [T1 T2] for instance. What is the easiest way to realize that ?
I wanted to use an integrator, but I can't make the random slope input which is a random signal of value T during T sec, then T' during T' sec, etc...
Thanks your help,

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