Title :
High resolution analysis of ultra-shallow water acoustic travel time and gain perturbations
Author :
Salles, G. ; Adams, A.E. ; Hinton, O.R. ; Sharif, B.S. ; Orr, N. ; Tsiminedis, C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Univ., UK
Abstract :
From the analysis of the direct path gain, this paper shows how it is possible to separate artefact effects from effects induced by the channel. The method proposed is based on the combination of the impulse response and the Wigner-Ville time frequency distribution. The article demonstrates the influence of swell on the travel delay of an underwater acoustic wave
Keywords :
ocean waves; oceanography; underwater acoustic propagation; Wigner-Ville time frequency distribution; acoustic propagation; acoustic travel time; artefact effect; channel; coast; direct path gain; gain perturbation; impulse response; ocean; ocean wave; swell; travel delay; ultra-shallow water; underwater acoustic wave; underwater sound; Acoustical engineering; Chirp; Digital filters; Instruments; Quadrature phase shift keying; Sonar equipment; Switches; Transducers; Transmitters; Underwater acoustics;
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
DOI :
10.1109/OCEANS.2000.881229
