DocumentCode :
1989249
Title :
Levenberg-Marquardt method for restoration of layered medium key parameters
Author :
Bondarenko, A.N. ; Ivaschenko, D.S.
Author_Institution :
NSTU, Novosibirsk, Russia
fYear :
2005
fDate :
26 June-2 July 2005
Firstpage :
575
Lastpage :
578
Abstract :
We consider the model of the anomalous diffusion process layered media exhibiting memory. We use fractional calculus as a mathematical description of such media and state the boundary value problem for the partial differential equation in fractional derivatives. We define inverse problems as the restoration of the medium key parameters including the anomalous diffusion index that correlates with the fractional dimension of the medium. The numerical approach involves numerical simulations of the process and variational methods for inverse problems. We present the numerical solutions obtained by means of the Levenberg-Marquardt method and discuss the corresponding results.
Keywords :
boundary-value problems; diffusion; inhomogeneous media; inverse problems; optimisation; partial differential equations; variational techniques; Levenberg-Marquardt method; anomalous diffusion process; boundary value problem; fractional calculus; fractional derivatives; inverse problems; layered medium key parameter restoration; mathematical description; medium fractional dimension; memory; numerical simulation; partial differential equation; variational methods; Bonding; Boundary value problems; Detectors; Diffusion processes; Fractional calculus; Inverse problems; Nonhomogeneous media; Numerical simulation; Partial differential equations; Temperature measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Science and Technology, 2005. KORUS 2005. Proceedings. The 9th Russian-Korean International Symposium on
Print_ISBN :
0-7803-8943-3
Type :
conf
DOI :
10.1109/KORUS.2005.1507786
Filename :
1507786
Link To Document :
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