Title :
Reconstruction of irregular waveguide geometry using a moving source
Author :
Kusyi, O.V. ; Stevrin, P. ; Voitovich, N.N. ; Zamorska, O.F.
Author_Institution :
Inst. of Appl. Problems of Mech. & Math., NASU, Lviv, Ukraine
Abstract :
A method for reconstructing the shape of an irregular waveguide is proposed. The method uses the amplitudes of the normal modes excited by a point source moving along the irregular part of the waveguide and measured at its output. The mean-square discrepancy of the measured and calculated mode amplitudes integrated over the source path is minimized. The direct problem is solved by the cross-section method. Numerical results concerning a 2D model problem are presented.
Keywords :
least mean squares methods; waveguide theory; waveguides; MMSE; cross-section method; irregular waveguide geometry reconstruction; minimized mean-square discrepancy; mode amplitudes; moving source; Acoustic waveguides; Application software; Boundary conditions; Eigenvalues and eigenfunctions; Equations; Geometry; Inverse problems; Mathematics; Shape; Waveguide components;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2004. DIPED 2004. Proceedings of the 9th International Seminar/Workshop on
Print_ISBN :
966-02-3253-5
DOI :
10.1109/DIPED.2004.242803
