用数学类真均匀或常态随机变数模拟时域杂讯，与定然时域讯号如，方形、三角、指数递减、或高斯等电压脉波在有限时域?围之有限个时域取样结合。

• Time domain noise is simulated by the mathematical pseudo uniform or normal random variable and coupled to deterministic signals such as rectangular (rect), triangular (tria), unit step exponential (uexp), even exponential (eexp), or Gaussian (gauss) pulse voltages in finite number of time samples in finite time period.