Empirical mode decomposition (EMD) and acoustic inversion of discrete layered media

摘要

Model mismatch is one of the main obstacles limiting the application of inverse methods. In this paper, we show that the empirical model decomposition technique developed by Huang etc. is helpful for separating reflection pulses from boundaries from noise by random scatters. This technique is useful to pick up the structure of a discrete layered medium. As an application of the technique, we have applied it to real 10kHz echo-sounder data from the Yellow Sea. The attenuation coefficients between the different layers have been estimated after processing the empirical model decomposition.