Group delay estimate system using least square fit to phase resp

Details Group delay estimate system using least square fit to phase resp Group delay estimate system using least square fit to phase resp

1994-12-02

2000-04-04

Karlsen, Ernest

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Parameter related to the reproduction or fidelity of a...

324617, 702 67, 702109, G01R 2500

Patent

active

060465956

ABSTRACT:
The phase response of a network is measured at uniform frequency intervals. A linear regression analysis is performed on samples of the phase response measured at frequencies within an aperture centered on a group delay frequency to obtain an estimate of the group delay of the network at that frequency. The process is repeated for a sequence of group delay frequencies to determine a trace of the group delay of the network across a range of frequencies.

REFERENCES:
patent: 4058766 (1977-11-01), Vogel
patent: 4065665 (1977-12-01), Rietsch
patent: 4658367 (1987-04-01), Potter
patent: 4734873 (1988-03-01), Malloy

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