Patent ID: 7289922
Filing Date: 2007-10-30
Classification: G01R

Abstract:
1. A method comprising: filtering a jitter signal TJ transforming the filtered jitter signal into the frequency domain to provide a frequency transformed filtered jitter signal TJ(f); forming a density function PDF(p) where p is a power, where PDF(p)Δp for a differential power Δp is the number of frequency bins in TJ(f) for which |TJ(f)| forming a noise floor p* based upon the density function where  such that p>p**, where  and processing the frequency transformed filtered jitter signal to zero out those frequency components having a magnitude less than or equal to the noise floor, and subtracting from the remaining frequency components a pseudo random sequence having a magnitude equal to the noise floor and having a uniformly distributed phase, to provide a deterministic jitter signal in the frequency domain.