A method for the analysis of chirp signals insonifying layered media for sub-bottom profiling

Author

Stevenson, I.R. ; Nicholson, P. ; Linnett, L.M. ; Morrison, S.

Author_Institution

Fortkey Ltd., Edinburgh, UK

Volume

4

fYear

2001

fDate

2001

Firstpage

2608

Abstract

A method is formalised for the analysis of signals containing one or more linear chirps. This is done with a view to aiding in the evaluation of data produced through sub-bottom profiling using Hamming shaped linear chirp pulses in the frequency range of about 1 to 12 kHz. A one dimensional convolution model of the physical process is also developed, and used to demonstrate the range of possibilities open for consideration through use of the outlined technique

Keywords

geophysical signal processing; geophysical techniques; oceanic crust; seafloor phenomena; seismology; sonar; sonar signal processing; 1 to 12 kHz; Hamming shaped linear chirp pulse; acoustic profiling; chirp signal; explosion seismology; geophysical measurement technique; layered media; linear chirp; marine sediment; oceanic crust; one dimensional convolution model; physical process; seafloor; sonar imaging; subbottom profiling; Acoustic measurements; Attenuation; Chirp; Frequency estimation; Geology; Nonhomogeneous media; Pulse shaping methods; Sediments; Signal analysis; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS, 2001. MTS/IEEE Conference and Exhibition

Conference_Location

Honolulu, HI

Print_ISBN

0-933957-28-9

Type

conf

DOI

10.1109/OCEANS.2001.968410

Filename

968410