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Analysis and Classification of Broadband Acoustic Echoes from Individual Live Fish using the Pulse Compression Technique
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 Title & Authors
Analysis and Classification of Broadband Acoustic Echoes from Individual Live Fish using the Pulse Compression Technique
Lee, Dae-Jae; Kang, Hee-Young; Kwak, Min Son;
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 Abstract
This study identified the species-specific, frequency-dependent characteristics of broadband acoustic scattering that facilitate classifying fish species using the pulse compression (PC) technique. Controlled acoustic scattering laboratory experiments were conducted with nine commercially important fish species using linear chirp signals (95-220 kHz) over an orientation angle range of in the dorsal plane at approximately increments. The results suggest that the angular-dependent characteristics of the broadband echoes and the frequency-dependent variability in target strength (TS) were useful for inferring the fish species of interest. The scattering patterns in the compressed pulse output were extremely complex due to morphological differences among fish species, but the x-ray images strongly suggested that spatial separation correlated well with scattering for the head, skeleton, bone, otoliths, and swim bladder within each specimen.
 Keywords
Broadband acoustic scattering;Frequency dependence;Pulse compression technique;Fish species classification;Chirp fishfinder;
 Language
Korean
 Cited by
1.
고등어(Scomber japonicus), 불볼락(Sebastes thompsoni) 및 쥐노래미(Hexagrammos otakii)에 의한 광대역 음향산란신호의 시간-주파수 분석,이대재;

한국수산과학회지, 2015. vol.48. 2, pp.221-232 crossref(new window)
2.
어류 부레의 형태학적 차이에 따른 음향산란강도의 자세 및 주파수 의존성의 변화,이대재;

한국수산과학회지, 2015. vol.48. 2, pp.233-243 crossref(new window)
1.
Acoustic Identification of Six Fish Species using an Artificial Neural Network, Korean Journal of Fisheries and Aquatic Sciences, 2016, 49, 2, 224  crossref(new windwow)
2.
Time-Frequency Analysis of Broadband Acoustic Scattering from Chub Mackerel Scomber japonicus, Goldeye Rockfish Sebastes thompsoni, and Fat Greenling Hexagrammos otakii, Korean Journal of Fisheries and Aquatic Sciences, 2015, 48, 2, 221  crossref(new windwow)
3.
Changes in the Orientation and Frequency Dependence of Target Strength due to Morphological Differences in the Fish Swim Bladder, Korean Journal of Fisheries and Aquatic Sciences, 2015, 48, 2, 233  crossref(new windwow)
4.
Time-Frequency Feature Extraction of Broadband Echo Signals from Individual Live Fish for Species Identification, Korean Journal of Fisheries and Aquatic Sciences, 2016, 49, 2, 214  crossref(new windwow)
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