FehlerratenmeBeinrichtung eineu 640 Mbit/s-PCM-Simulators Error Rate Measuring Equipment of a 640 Mbits/s PCM-Simulator

摘要

This paper describes the generation of 4 streams of 160 Ambits/s pseudorandom pulse teat signals and a digital word synchrony-nation method for error rate measurements, which are necessary for an experimental 640 Ambits/s-PCM-transmission system using a waveguide.. Pour delayed versions derived from one 15 stage maximum length sequence with, the aid of mod-2 additions serve as 4 different pseudorandom sources. A simple error rate counting circuit and a resettable counter using shift registers work together a stabilizing circuit which controls the feeding of the clock to a reference pseudorandom pulse generator and achieves word-synchronization.