FORFARANDE FOR SAMTIDIG ALSTRING AV ETT ANTAL, SVAGT KORRELERADE PSEUDO-RANDOM PULSTAG SAMT ANORDNING FOR UTFORANDE AV FORFARANDET

摘要

A method and apparatus for generating a number of weakly correlated pseudorandom pulse trains which is especially useful for generation of noise signals utilized for measurements on telephone cables carrying PCM traffic The apparatus generates a number of mutually phase shifted versions of a binary pulse train which are sampled with individual sampling signals of the same nominal frequency.