Title :
Inversion of multi-information of array using the variational Born iteration method
Author :
Feng, Yang ; Zaiping, Nie
Author_Institution :
Dept. of Microwave Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A new reconstruction algorithm for two-dimensional axisymmetry inhomogeneous medium using array induction tool (AIT) measurements is presented. The algorithm, namely, the variational Born iterative method (VBIM) based on the variational principle is used for solving the electromagnetic inversion scattering problem. In each iteration of the VBIM, a numerical mode-matching method (NMM) is used to solve the logging responses of the AIT. Numerical simulation is given to demonstrate the capability of the inversion algorithm. In addition, the radial resolution of AIT is also investigated.
Keywords :
array signal processing; electrical conductivity; electromagnetic induction; electromagnetic wave scattering; geophysical prospecting; geophysical signal processing; image reconstruction; image resolution; inhomogeneous media; integral equations; inverse problems; iterative methods; mode matching; variational techniques; 2D axisymmetry inhomogeneous medium; VBIM; array induction tool measurements; electromagnetic inversion scattering; formation conductivity; geophysical exploration; imaging quality; integral equation; inversion algorithm; logging responses; multi-information array inversion; nonlinear integral equation; nonlinear problem; numerical mode-matching method; numerical simulation; radial resolution; reconstruction algorithm; variational Born iteration method; variational principle; Coils; Conductivity; Dielectric measurements; Electromagnetic scattering; Geophysical measurements; Integral equations; Iterative algorithms; Nonlinear equations; Nonuniform electric fields; Reconstruction algorithms;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894728
