Title :
Interpolating wavelet multiscale inversion for seismic waveform
Author :
Ma, Jian-Wei ; Yang, Hui-Zhu
Author_Institution :
Dept. of Eng. Mech., Tsinghua Univ., Beijing, China
Abstract :
A method of interpolating wavelet multiscale inversion (IWMI) based on interpolating wavelet transform (IWT) is proposed for inverse seismic waveform. The problem is solved in multiresolution interpolating space rather than traditional physical space. The stability of modeling, local minima, computational burden and perturbation of optimization parameters can be improved effectively due to the properties of the interpolating wavelet. It is a promising method because of its low dependence on the initial model, convergence efficiency and robustness. Numerical results show the effectiveness and potential of the method.
Keywords :
interpolation; perturbation techniques; seismology; wavelet transforms; computational burden; convergence efficiency; interpolating wavelet multiscale inversion; inverse seismic waveform; local minima; multiresolution interpolating space; optimization parameters; perturbation; robustness; Geophysics computing; Impedance; Iterative methods; Multiresolution analysis; Optimization methods; Samarium; Stability; Switches; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Signal Processing, 2002 6th International Conference on
Print_ISBN :
0-7803-7488-6
DOI :
10.1109/ICOSP.2002.1181034