Title :
Application of an algorithm for fitting exponential functions to magnetic relaxation phenomena
Author :
Fondado, A. ; Rivas, J.
Author_Institution :
Dept. of Appl. Phys., Santiago Univ., Spain
fDate :
11/1/1993 12:00:00 AM
Abstract :
A procedure is described for the calculation of the amplitudes and times which fit a sequence of data items, equally spaced in time, to a discrete sum of exponentials by minimizing the sum of the squares of the errors. This procedure consists in the calculation of the Fourier transform of the sequence and its fitting by means of a rational function, obtained from the polynomial coefficients of the amplitudes and times of the exponential components
Keywords :
Fourier transforms; magnetic relaxation; numerical analysis; polynomials; Fourier transform; amplitudes; discrete sum; exponential components; exponential function fitting; magnetic relaxation phenomena; numerical algorithm; polynomial coefficients; Atomic measurements; Equations; Fourier transforms; Loss measurement; Magnetic losses; Magnetic materials; Physics; Polynomials; Q measurement; Stability;
Journal_Title :
Magnetics, IEEE Transactions on
