Title :
Sound-velocity estimation: a system theoretic approach
Author :
Candy, J.V. ; Sullivan, E.J.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
A system-theoretic approach is proposed to investigate the feasibility of reconstructing a sound velocity profile (SVP) from acoustical hydrophone measurements. This problem is based on a state-space representation of the normal-mode propagation model. It is shown that this representation can be utilized to investigate the the so-called observability of the SVP from noisy measurement data. A model-based processor is developed to extract this information and it is shown that even in cases where limited SVP information is available, the SVP can be estimated using this approach
Keywords :
acoustic variables measurement; inverse problems; oceanographic techniques; underwater sound; acoustical hydrophone measurements; inverse problem; measurement technique; model-based processor; normal-mode propagation model; ocean sea underwater sound; representation; sound velocity profile; sound-velocity estimation; state-space representation; system theoretic approach; system theory; Acoustic measurements; Acoustic noise; Acoustic propagation; Acoustic signal processing; Estimation theory; Laboratories; Observability; Oceans; Sea measurements; Sonar equipment;
Conference_Titel :
OCEANS '93. Engineering in Harmony with Ocean. Proceedings
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-1385-2
DOI :
10.1109/OCEANS.1993.326217
