Amplitude Distributions of Telephone Channel Noise and a Model for Impulse Noise

The noise waveforms found on voice bandwidth telephone channels are generally recognized to be non-gaussian in their amplitude distribution. This paper presents data which suggests that a simple exponential is a good function to describe amplitude densities in the extreme tails. A comprehenisve model of impulse noise as viewed on trunk groups is then presented. The model relates the distributions of impulse noise levels and impulse noise counts.