Broadband Sonar Species Identification Results

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Broadband Sonar Species Identification Results
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Initial Wideband ResultsOntario Hydro Research
Data
Under NSF funding, SFS processed echo data from a
comparatively narrow band system in operating in
fresh water and achieved the following
performance. Echo detection selected fish echoes
from among background noise and echoes from
debris. Species classification differentiated
between two species of similar size walleye and
sturgeon. Information used for the
classification included the shape of the echo
time series and the estimated power spectrum of
the echo. Where echoes were averaged, the
average was of ten consecutive echoes.
Table Probability of Correct Result for Echo
Detection Classification
Echo Detection
Species Classification
Detect Classify
Input Information
88
87
77
Shape Info (avgd echoes)
91
88
80
Spectral Info (avgd echoes)
92
95
88
Shape Spectrum (avgd)
85
87
74
Shape Spectrum (single)
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Broadband SonarSpecies Signatures Collected

• Marine Species Signatures
• Freshwater Species Signatures
• Alewife
• Bloater
• Smelt
• Stickleback
• Whitefish

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Species Identification Performance Great Lakes
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Species Identification Performance Great Lakes
6
Species Identification Performance Marine
Bottomfish
7
Species Identification Performance Marine
Bottomfish
8
Species Identification Performance Marine
Bottomfish
9
Spectral Analysis Marine Midwater Fish