Patent ID: 8594169
Filing Date: 2013-11-26
Classification: G01R

Abstract:
1. A method for analyzing jitter using a test and measurement instrument, the method comprising: storing a data pattern associated with a waveform in an acquisition memory; identifying edge locations associated with the data pattern of the waveform; comparing the edge locations to a timing reference; obtaining a collection of time interval error values responsive to the comparison, the collection of time interval error values corresponding to a composite jitter of the waveform; decomposing the composite jitter into jitter components that are correlated to the data pattern and jitter components that are uncorrelated to the data pattern; using a spectral approach, decomposing the jitter components that are uncorrelated to the data pattern into jitter components that are recognizable as periodic and jitter components that are unrecognizable as periodic; converting the jitter components decomposed using the spectral approach to a time domain; subtracting from the composite jitter the jitter components that are correlated to the data pattern and the recognizably periodic jitter components, thereby isolating uncorrelated residual jitter; and decomposing the uncorrelated residual jitter into bounded uncorrelated jitter and random jitter, including: