how to create this waveform using uniform random number in simulink block?

it is combined with short and long pulse width.

Answer 1

[Azzi Abdelmalek]

Use a Random Number block

[senthil kumar]

in this picture, pulse width is not constant for example the frequency of 0 t 50 sec is different from remaining portion. is it possible to create this using random number? random number will give only const frequency. am i right?