Patent ID: 7289922

Claim:
A method comprising: filtering a jitter signal TJ R (t) to provide a filtered jitter signal TJ(t); 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)| 2 falls within a range [p−Δp/2, p+Δp/2]; forming a noise floor p* based upon the density function where p * = arg ⁢ ⁢ max ︸ p ⁢ { ⅆ 2 ⁢ PDF ⁡ ( p ) ⅆ p 2 } , such that p>p**, where p ** = arg ⁢ ⁢ min ︸ p ⁢ { ⅆ PDF ⁡ ( p ) ⅆ p } ; 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.