Humitity and nonlinearity

摘要

In seismic experiments, waves that bounce back and forth be- tween layers are called multiple reflections. Since these waves interact repeatedly with the heterogeneities in the earth, the re- lation between the multiple reflections and the earth structure is nonlinear. Present-day seismic processing is geared toward suppressing these multiples rather than extracting the informa- tion tat is contained in this part of the wavefield.