噪声的matlab程序是什么

```matlab

```

```matlab

```

```matlab

f = 1; % 频率

pink_noise = (1/n) cumsum(randn(n, 1) / f);

```

```matlab

red_noise = cumsum(randn(n, 1));

```

```matlab

f = 1; % 频率

blue_noise = (1/n) cumsum(randn(n, 1) / f.2);

```