A Simple Divergence Prevention Scheme for Adaptive Equalizer in Digital Power Line Carrier Systems

Abstract

An adaptive equalizer is adopted in a high speed digital power line carrier system. A surge noise is produced in a digital power line carrier system by opening and closing operations of an electrical equipment. This surge noise causes a serious problem, which is the divergence of tap coefficient of adaptive equalizer. In this paper, we propose a simple tap coefficient divergence prevention scheme and confirm its effectiveness by an experiment.