How do I use a variable in a Sine Wave block to specify the frequency to be generated from a white noise block in Simulink?

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Paul Hamilton 2022-10-9

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https://ww2.mathworks.cn/matlabcentral/answers/1820565-how-do-i-use-a-variable-in-a-sine-wave-block-to-specify-the-frequency-to-be-generated-from-a-white-n

评论： Mathieu NOE 2022-10-10

I have a simulation in Simulink where I want to use a White Noise block to control the frequency that a Sine Wave block outputs to be used in the circuit (simulation). Can I just specify a variable and use this in the Sine Wave block to determine what the signal output is to be? How can I do this? I have tried to use a funtion block and an Block Parameters to Work Space block but nothing happens. I get no errors but in the work space the variable does not change from the initial value of 0.

I would appreciate any help that I can recieve.

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Mathieu NOE 2022-10-10

hello

the Sine Wave block cannot be controlled from outside (unless a specific value (fix) exist in the workspace and you would use that

instead I would reccommend that you use the trigonometric block (sin) to create your signal from the frequency (given by the random generator) and current time and amplitude

you see , it's fairly easy to create your own fully customized sine wave block

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