Research output: Contribution to journal › Article › peer-review
Method of local peak functions for reconstructing the original profile in the Fourier transformation. / Dosch, H.; Slavyanov, S. Yu.
In: Theoretical and Mathematical Physics, Vol. 131, No. 1, 01.12.2002, p. 459-467.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Method of local peak functions for reconstructing the original profile in the Fourier transformation
AU - Dosch, H.
AU - Slavyanov, S. Yu
PY - 2002/12/1
Y1 - 2002/12/1
N2 - We propose a method for reconstructing the original profile function in the one-dimensional Fourier transformation from the module of the Fourier transform function analytically. The major concept of the method consists in representing the modeling profile function as a sum of local peak functions. The latter are chosen as eigenfunctions generated by linear differential equations with polynomial coefficients. This allows directly inverting the Fourier transformation without numerical integration. The solution of the inverse problem thus reduces to a nonlinear regression with a small number of optimizing parameters and to a numerical or asymptotic study of the corresponding modeling peak functions taken as the eigenfunctions of the differential equations and their Fourier transforms.
AB - We propose a method for reconstructing the original profile function in the one-dimensional Fourier transformation from the module of the Fourier transform function analytically. The major concept of the method consists in representing the modeling profile function as a sum of local peak functions. The latter are chosen as eigenfunctions generated by linear differential equations with polynomial coefficients. This allows directly inverting the Fourier transformation without numerical integration. The solution of the inverse problem thus reduces to a nonlinear regression with a small number of optimizing parameters and to a numerical or asymptotic study of the corresponding modeling peak functions taken as the eigenfunctions of the differential equations and their Fourier transforms.
UR - http://www.scopus.com/inward/record.url?scp=0036253560&partnerID=8YFLogxK
U2 - 10.1023/A:1015145517620
DO - 10.1023/A:1015145517620
M3 - Article
AN - SCOPUS:0036253560
VL - 131
SP - 459
EP - 467
JO - Theoretical and Mathematical Physics (Russian Federation)
JF - Theoretical and Mathematical Physics (Russian Federation)
SN - 0040-5779
IS - 1
ER -
ID: 36182448