How to generate a square wave with random normal distributed period and pulse width?

Hi,

for example: a square wave signal with a period of 40-50 and a pulse width of 20-30, amplitude should be 1 I need it to be a continuous signal, each wave with random period and pulse width

so basically i need a row of 1s followed by a row of 0s followed by a new random row of 1s and so on...

I have the signal building toolbox, don't know if this helps

Thank you

Answer 1

[Matt J]

It'll be something like this,

    T=5*randn+45; %duration
    W=5*randn+25; %pulse width

    t=linspace(0,T,1000);

    pulse=(t<=W);

     plot(t,pulse); ylim([-1,2]);

[Killimangiro]

Thank you, but that is not what i meant...

to make it more clear, what i´m searching for is a wave like... 1111100011111110001111100111111000111111100... so a random number of 1s, length between 4 and 6, followed by a random number of 0s, length between 2 and 3

so the numbers must be absolute and independent from the length of the whole vector, also each wave must be random in duration and pulse width

i hope, it's easier to understand now

[Matt J]

Well, I think that's pretty much what you get if you wrap my code in a for loop. What about this, for generating a pulse train

    numpulses=10;
    Pcell=cell(1,numpulses);
    dt=.001;

    for i=1:numpulses
        T=5*randn+45; %duration
        W=5*randn+25; %pulse width
        t=0:dt:T;

       Pcell{i}=(t<=W); 
    end

     pulse=[Pcell{:}];
     t=(0:length(pulse)-1)*dt;

     plot(t,pulse) ; ylim([-1 2])

[Aswathy]

How can I use the above code to fed it as a gate pulse to a converter in simulink?

[Sena Koçak]

https://nl.mathworks.com/matlabcentral/fileexchange/105035-randpulsegenerator

[Deepayan Bhadra]

@Matt J: How did you choose dt in the above solution? I'm trying to tailor your solution for my problem here

https://nl.mathworks.com/matlabcentral/answers/1729985-random-square-wave-of-varying-individual-pulse-width-but-fixed-total-duration?s_tid=prof_contriblnk