Neural network for ocean bottom parameter estimation

Robert H. Baran, Hanseok Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This concerns the estimation of physical parameters characterizing the ocean bottom from parallel time series representing (A) the instantaneous height of the water column above a section of bottom and (B) the vertical displacement of the bottom section from its long term average. Time series A, representing wind-generated waves, is modeled by a sinusoid with phase jitter. In the absence of both seismic background noise and any nonlinear behavior in the ocean bottom, time series B could be modeled by coupling the bottom through a spring and dashpot to a mass proportional to A. We created two- and three-layer adaptive networks in which series A and B (with lag) were inputs. Training consisted in subtracting the network output from the current value of series B and feeding back these errors in accordance with the appropriate formulas for gradient descent in squared error. The trained nets act as models of the way in which the bottom responds to changes at the surface.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages52-63
Number of pages12
ISBN (Print)0819408654
Publication statusPublished - 1992
EventAutomatic Object Recognition II - Orlando, FL, USA
Duration: 1992 Apr 221992 Apr 24

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1700
ISSN (Print)0277-786X

Other

OtherAutomatic Object Recognition II
CityOrlando, FL, USA
Period92/4/2292/4/24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Neural network for ocean bottom parameter estimation'. Together they form a unique fingerprint.

  • Cite this

    Baran, R. H., & Ko, H. (1992). Neural network for ocean bottom parameter estimation. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 52-63). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1700). Publ by Int Soc for Optical Engineering.