Spectral estimation utilizing an autocorrelation-based minimum f

Details Spectral estimation utilizing an autocorrelation-based minimum f Spectral estimation utilizing an autocorrelation-based minimum f

1989-10-30

1991-01-01

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

G01R 2316

Patent

active

049821504

ABSTRACT:
A method for rapidly estimating power spectral density components in the spectrum of an input signal, by digitizing the input signal over a selected time interval at a selected sample rate; and estimating an autocorrelation sequence for the digitized input signal before generating a solution b.sub.s.sup.0 to the autocorrelation sequence in a Yule-Walker equation by use of Levinson recursion. After generating a control parameter (temperature) .alpha., a non-linear MFE equation, ##EQU1## is solved with b.sub.s.sup.0 as an initial solution. Then, power spectral density components ##EQU2## are generated and recorded as estimates of the input signal.

REFERENCES:
patent: 3824384 (1974-07-01), Murata et al.
patent: 4761796 (1988-08-01), Dunn et al.

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