BKI-research web  - for ten years member of    
Søkemotor     Applied Norway: Teknisk info TV   | Chuch growth research 

Cand. real. Knut Sørsdal - Research web

The Riccati equation is a well known difference equation in mathematics used in medicine as well as other fields. We will now apply it on seismic data.

Inversion of reflection data

Introduction
There is a considerable interest in inversion techniques for seismic reflection data. The mathematical problem of how to obtain the properties of a reflecting medium from the properties of the reflected wave field has been studied in many papers. Nilsen and Gjevik (1978) has introduced an iterative inversion method which also takes into account wave energy absorption. They have introduced a viscoelastic Kelvin Voigt model in a traight forward inversion theory. However, no calcuations including absorption is done. In our paper we show that the theory of Nilsen and Gjevik easily can be extended to include a general viso-elastic absorption model and also some calculations on a simple impedance profile has been done.
Read whole paper  - will come later  (13 sept.i 2001 18:56)