Curve fitting to asymmetrical chromatograms by the extended Kalman filter in frequency domain

Curve fitting to asymmetrical chromatograms by the extended Kalman filter in frequency domain

An algorithm is presented to perform curve fitting on the basis of the Fourier transform of a signal. The curve fitting has been done with the exponentially modified Gaussian model, obtained when convolving a Gaussian distribution and an exponential decay function. The parameter estimation has been...

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Veröffentlicht in:Talanta (Oxford) 1994-07, Vol.41 (7), p.1119-1126
Hauptverfasser: Felinger, Attila, Pap, Tamás, Inczédy, János
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Sprache:eng
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Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
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container_title Talanta (Oxford)
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creator Felinger, Attila
Pap, Tamás
Inczédy, János
description An algorithm is presented to perform curve fitting on the basis of the Fourier transform of a signal. The curve fitting has been done with the exponentially modified Gaussian model, obtained when convolving a Gaussian distribution and an exponential decay function. The parameter estimation has been carried out by means of the two-dimensional extended Kalman filter. The goodness-of-fit has been characterized by the trace of the covariance matrix of the estimated parameters. The precision of the estimated parameters obtained by fitting either in time or frequency domain is compared.
doi_str_mv 10.1016/0039-9140(94)80081-2
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subjects Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
title Curve fitting to asymmetrical chromatograms by the extended Kalman filter in frequency domain
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