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

1993-02-05

1995-03-21

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

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

324617, 364723, 364577, 364553, G06G 730

Patent

active

053999762

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.

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patent: 4301536 (1981-11-01), Favin
patent: 4417337 (1983-11-01), Favin
patent: 4983906 (1991-01-01), Hiller
Couder: "Measuring Group Delay"-IBM Tech. Disclosure Bulletin-Aug. 1971-p. 894.
Fowles: "Envelope Delay Distortion Measurements"-hp Journal Aug. 1974-(pp. 14-16).
"The Least Squares Estimation of Time Delay and Its Use in Signal Detection", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-26, No. 3, Jun. 1978, pp. 217-222.
"A Parameter Estimation Approach to Time-Delay Estimation and Signal Detection", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-28, No. 1, Feb. 1980, pp. 8-15.
"Time Delay Estimation Using Phase Date", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 3, Jun. 1991, pp. 471-477.
"On Using the LMS Algorithm for Time Delay Estimation", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-30, No. 5, Oct. 1982, pp. 798-801.

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