Frequency response measurement

Details Frequency response measurement Frequency response measurement

2006-06-27

2006-06-27

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Testing system

For transfer function determination

Reexamination Certificate

active

07069167

ABSTRACT:
A method of frequency response measurement for a sinusoidal test signal, such as a swept sinusoid signal, a multi-burst sinusoidal signal or the like, uses a complex sinusoid window at a particular frequency for correlation with the sinusoidal test signal. The resulting complex correlation magnitude signal is thresholded as a function of a percentage of a maximum complex correlation magnitude. A centroid of the thresholded complex correlation magnitude signal is found, and the complex correlation magnitude at the centroid is the frequency response at the particular frequency.

REFERENCES:
patent: 5959726 (1999-09-01), Riley et al.
patent: 6298322 (2001-10-01), Lindemann

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