Results 231 to 240 of about 212,366 (287)

Multi-parameter nonlinear inversion with exact reflection coefficient equation

Journal of Applied Geophysics, 2013
Abstract Amplitude variation with amplitude or angle (AVO/AVA) inversion has been widely utilized in exploration geophysics to estimate the formation of elastic parameters underground. However, conventional AVO/AVA inversion approaches are based on different approximate equations of Zoeppritz equations under various hypotheses, such as limited ...
Zhaoyun Zong, Xingyao Yin, Guochen Wu
openaire   +3 more sources

Depth of investigation for multi-parameters inversions

Proceedings, 2015
We have developed a new robust concept for the calculation of the depth of investigation (DOI) for inversion problems described by several intrinsic parameters, like the spectral inversion of time-domain induced polarization data or the inversion of full-decay Nuclear Magnetic Resonance soundings.
Fiandaca, G.   +2 more
openaire   +3 more sources

Inverse multi-parameter eigenvalue problems for matrices

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1985
SynopsisWe study the possibility of perturbing a matrix A by a diagonal matrix so that an eigenvalue problem with leading matrix A has specifiedeigenvalues when A is replaced by A+D. The particular cases presented are the one-parameter generalized eigenvalue problem (A× = λB μ×, a two-parameter eigenvalue problem (A + λB + μC)× = 0, a linked system ...
Browne, Patrick J., Sleeman, B. D.
openaire   +1 more source

Land Seismic Data Multi-parameter Waveform Inversion

Proceedings, 2014
Acoustic full waveform inversion of low-frequency, long-offset, and wide-azimuth data allows updating the long-to-intermediate wavelength components of the velocity model. For migration of reflection data, anisotropy needs to be accounted for in the inversion, since full waveform inversion mainly retrieves the horizontal velocity.
A. Stopin, R.E. Plessix
openaire   +1 more source

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