Title :
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
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;
Conference_Titel :
OCEANS, 2001. MTS/IEEE Conference and Exhibition
Conference_Location :
Honolulu, HI
Print_ISBN :
0-933957-28-9
DOI :
10.1109/OCEANS.2001.968410
