DocumentCode
2636046
Title
FM pulses separation for improving sub-bottom attenuation estimation
Author
Quinquis, André ; Radoi, Emanuel ; Maroni, C.S.
Author_Institution
EIA Dpt., ENSIETA, Brest, France
Volume
2
fYear
1997
fDate
6-9 Oct 1997
Firstpage
1359
Abstract
A new method is proposed to infer the attenuation properties of the seafloor from its response to the frequency modulated pulses emitted by the subbottom profiler. This method is based on the time-frequency separation of two chirps and the spectral ratio algorithm combined with a neural network to improve attenuation estimation for thin sediment layers
Keywords
geophysical signal processing; geophysical techniques; neural nets; oceanographic techniques; seafloor phenomena; sediments; seismology; sonar signal processing; FM pulses separation; chirp; frequency modulated pulse; geophysical measurement technique; marine sediment; neural net; neural network; ocean bottom; seafloor geology; seismology; signal processing; sonar; spectral ratio algorithm; subbottom attenuation estimation; subbottom profiler; thin sediment layers; time-frequency separation; Acoustic propagation; Acoustic scattering; Attenuation; Chirp; Frequency estimation; Frequency modulation; Neural networks; Pulse modulation; Sea floor; Sediments;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS '97. MTS/IEEE Conference Proceedings
Conference_Location
Halifax, NS
Print_ISBN
0-7803-4108-2
Type
conf
DOI
10.1109/OCEANS.1997.624193
Filename
624193
Link To Document