Noise corrected pole and zero analyzer

Details Noise corrected pole and zero analyzer Noise corrected pole and zero analyzer

1984-08-23

1987-03-31

Krass, Errol A.

Boots, shoes, and leggings

364572, 364574, 371 24, 375 14, G06F 1520, G06F 1100, H03F 1266

Patent

active

046548084

ABSTRACT:
A pole and zero analyzer determines the poles and zeroes of a device by applying a stimulus signal to the device, detecting the stimulus and response signals and computing the auto- and cross-spectra. An estimated transfer function is least squares fit to a measured transfer function obtained from the auto- and cross-spectra and the poles and zeroes are obtained as the roots of the estimated transfer function. A weighting function may be used to emphasize certain desired regions of the frequencies of interest in the determination of the least squares fit. The orders of the poles and zeroes are modified until an optimum fit is reached.

REFERENCES:
patent: 3586846 (1971-06-01), Ley
patent: 3643073 (1972-02-01), Sawamura
patent: 3973112 (1976-08-01), Sloane
patent: 4122529 (1978-10-01), Hoech
patent: 4328552 (1982-05-01), Stovall
patent: 4352160 (1982-09-01), Frech
patent: 4354177 (1982-10-01), Sloane
patent: 4375692 (1983-03-01), Shensa et al.
patent: 4397029 (1983-08-01), Satorius et al.

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