Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1989-04-19
1990-12-25
Williams, Hezron E.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
36441313, G01R 3346
Patent
active
049806408
ABSTRACT:
A method of and device for the determination with high computational efficiency of spectrum parameters of a spectrum utilizes quantification and model fitting of sampling values of a signal in the time domain on the basis of a model function comprising exponentially damped sinusoids. The method starts with a coarse estimation of a number of spectrum parameters, followed by linearization of the model function and iterative estimation of the coarsely estimated parameters and further parameters, utilizing a least-squares optimization procedure where inner product terms are brought into analytic form and are preferably recursively determined.
REFERENCES:
patent: 3655958 (1972-04-01), West
patent: 4520316 (1985-05-01), Hall et al.
patent: 4716368 (1987-12-01), Haacke
P. Diehl et al., "Automatic Analysis of NMR Spectra: An Alternative Approach", Journal of Magnetic Resonance, vol. 19, No. 1, Jul. 1975, pp. 67-82.
De Beer et al., "Improved Harmonic Retrieval . . . Invoking Prior Knowledge", EUSIPCP-88, Sep. 5-8, 1988, Grenoble.
J. W. C. van der Veen et al., "Accurate Quantification of in Vivo .sup.31 P NMR Signals Using the Variable Projection Method and Prior Knowledge, Magnetic Resonance in Medicine", vol. 6, No. 1, Jan. 1988, pp. 92-98.
H. Barkhuisjen et al., "Improved Algorithm for Noninteractive Time-Domain Model Fitting to Exponentially Damped Magnetic Resonance Signals", Journal of Magnetic Resonance 73, pp. 553-557, 1987.
C. H. Sotak et al., "Automatic Phase Correction of Fourier Transform NMR Spectra Based on the Dispersion Versus Absorption (DISPA) Lineshape Analysis", Journal of Magnetic Resonance 57, pp. 453-962, 1984.
De Beer Ronald
Pijnappel Wilhelmus W. F.
Van Ormondt Dirk
O'Shea Kevin D.
Slobod Jack D.
U.S. Philips Corporation
Williams Hezron E.
LandOfFree
Method of and device for determining spectrum parameters of a sp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and device for determining spectrum parameters of a sp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and device for determining spectrum parameters of a sp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1165477