WIT Press


Regularization Method For Deconvolution Problems In Soil Dynamics

Price

Free (open access)

Paper DOI

10.2495/BE950401

Volume

10

Pages

8

Published

1995

Size

706 kb

Author(s)

J.T. Chen, L.Y. Chen & H.-K. Hong

Abstract

In this paper, the dual representation model with hypersingularity and di- vergent series is reviewed. The Cesaro sum is applied to regularize the divergent series which occurs in the ground motion deconvolution analysis in soil dynamics. To deal with the ill-posed problem, we use the corner of the L-curve as the compromise point to determine the optimum order of the Cesaro sum, so that the high-frequency content can be suppressed instead of engineering judgement using the concept of cutoff frequency in SHAKE program. Two examples are shown, one is for single layer soil with viscous damping, the other one is for

Keywords