Compensation of vertical displacement components in marine seismic applications using the coupled heave and pitch model

Author

El-Hawary, Ferial

Author_Institution

Tech. Univ. of Nova Scotia, Halifax, NS, Canada

fYear

1988

fDate

31 Oct-2 Nov 1988

Firstpage

291

Abstract

The developments of a realistic model that incorporates vertical motions of a towed body is considered. Inclusion of the pitch dynamics results in two-coupled second-order equations in the heave and pitch components. The conventional hydrodynamic equations are reviewed, and a state-space model for representing the vertical displacement dynamics is derived. The model is of the fourth order and is of a form suitable for Kalman filtering implementation. The application of a standard Kalman filter to estimate the vertical displacement component on the basis of this higher-order model is also discussed

Keywords

geophysical prospecting; geophysical techniques; seismology; Kalman filter; Kalman filtering implementation; acoustic array; coupled heave and pitch model; explosion seismology; fourth order; higher-order model; hydrodynamic equations; marine seismic applications; pitch dynamics; prospecting technique; realistic model; state-space model; towed body; towed seismic array; two-coupled second-order equations; vertical displacement components; vertical displacement dynamics; Acoustic arrays; Acoustic reflection; Equations; Filtering; Helium; Hydrodynamics; Kalman filters; Motion control; Nonhomogeneous media; Optical reflection; Process design; Underwater acoustics;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '88. A Partnership of Marine Interests. Proceedings

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/OCEANS.1988.23514

Filename

23514