Generate noise signal with min and max amplitude

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Sabella Huang 2022-7-4

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评论： Sabella Huang 2022-7-5

Hello Guys,

I want to ask about, how to generate noise signal with Gaussian distribution and have an output amplitude range of [-4 4]?.

Thank you

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Image Analyst 2022-7-4

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https://ww2.mathworks.cn/matlabcentral/answers/1753250-generate-noise-signal-with-min-and-max-amplitude#answer_999860

Try this:

sigma = 1.1;

r = sigma * randn(100000, 1);

histogram(r)

grid on;

xticks(-5:5)

I just picked it arbitrarily. As you know gaussians go from -infinity to +infinity and sigma just determines the spread of the hump. If you need to clip values to [-4,4] you can do that. Or you can delete them from the array - whatever you want. Try changing sigma and running my little snippet and see what happens.

sigma = 5;

r = sigma * randn(100000, 1);

histogram(r)

grid on;