Gaussian with non unit variance

2011 4 1
1 个回答
回答已采纳
3 次查看（30 天）

0 个投票

Hi , how can I define a zero-mean gaussian noise with non-unit variance? I know that this command: x= randn(1,100); gives me the normal distribution(zero mean and unit variance), but how to define it for variance equal to f.ex 0.36 ??
tnx a lot...

请先登录，再回答此问题。

 采纳的回答

Jos (10584)
Jos (10584) 2011-4-1

1 个投票

Multiply the noise by the square root of the desired variance:
sqrt(MyVar) * randn(...)

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Time Series 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by