Patent ID: 7414411
Filing Date: 2008-08-19
Classification: G01R

Abstract:
1. A method of calibrating a signal path of a signal analysis system comprising the steps of: connecting a first probe P converting the sets of samples in the time domain of the signal under test to spectral domain representations; characterizing transfer parameters of the device under test within a spectral domain from the spectral domain representations; calculating an open circuit voltage (v connecting a second probe P converting the plurality of measurement samples in the time domain to a spectral domain representation (v computing an equalization filter adapted to compensate for loading of the device under test caused by the first and second probes, P acquiring at least an additional set of samples of the signal under test from the device under test in the time domain via the first probe P converting the additional set of samples of the signal under test from the time domain to a spectral domain representation; and processing the spectral domain representation of the additional set of samples using the computed equalization filter to effect thereby an open circuit voltage {circumflex over (v)}