acoustic discrimination
Recently Published Documents


TOTAL DOCUMENTS

43
(FIVE YEARS 0)

H-INDEX

14
(FIVE YEARS 0)

2020 ◽  
Vol 148 (4) ◽  
pp. 2556-2556
Author(s):  
Michael Smotherman ◽  
Stephen Odunsi ◽  
Mikayla Hobbs ◽  
Thomas Croft


2020 ◽  
Vol 224 ◽  
pp. 105434
Author(s):  
Naizheng Yan ◽  
Tohru Mukai ◽  
Jun Yamamoto ◽  
Kohei Hasegawa




2020 ◽  
Vol 23 (3) ◽  
pp. 595-611
Author(s):  
Jenna V. Congdon ◽  
Allison H. Hahn ◽  
Kimberley A. Campbell ◽  
Erin N. Scully ◽  
Daniel A. Yip ◽  
...  


PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0216353 ◽  
Author(s):  
Gala Moreno ◽  
Guillermo Boyra ◽  
Igor Sancristobal ◽  
David Itano ◽  
Victor Restrepo


Geosciences ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 455 ◽  
Author(s):  
Timo Gaida ◽  
Tengku Tengku Ali ◽  
Mirjam Snellen ◽  
Alireza Amiri-Simkooei ◽  
Thaiënne van Dijk ◽  
...  

Multi-frequency backscatter data collected from multibeam echosounders (MBESs) is increasingly becoming available. The ability to collect data at multiple frequencies at the same time is expected to allow for better discrimination between seabed sediments. We propose an extension of the Bayesian method for seabed classification to multi-frequency backscatter. By combining the information retrieved at single frequencies we produce a multispectral acoustic classification map, which allows us to distinguish more seabed environments. In this study we use three triple-frequency (100, 200, and 400 kHz) backscatter datasets acquired with an R2Sonic 2026 in the Bedford Basin, Canada in 2016 and 2017 and in the Patricia Bay, Canada in 2016. The results are threefold: (1) combining 100 and 400 kHz, in general, reveals the most additional information about the seabed; (2) the use of multiple frequencies allows for a better acoustic discrimination of seabed sediments than single-frequency data; and (3) the optimal frequency selection for acoustic sediment classification depends on the local seabed. However, a quantification of the benefit using multiple frequencies cannot clearly be determined based on the existing ground-truth data. Still, a qualitative comparison and a geological interpretation indicate an improved discrimination between different seabed environments using multi-frequency backscatter.



PLoS ONE ◽  
2018 ◽  
Vol 13 (8) ◽  
pp. e0203357
Author(s):  
Pavel Linhart ◽  
Martin Šálek


PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177206 ◽  
Author(s):  
Pavel Linhart ◽  
Martin Šálek




Sign in / Sign up

Export Citation Format

Share Document