NIPPON SUISAN GAKKAISHI
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
Real Time Prediction for Volume Scattering Strength which is related to the abundance of fish stocks by Auto Regressive Prediction method
Shinichiro Kawaguchi, Noritatsu Sano, Yoshiharu Mizuarai
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1987 Volume 53 Issue 8 Pages 1351-1358

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Abstract
In the former paper, the authors described the results of simulation and fundamental ex-periments by using Frequency Diversity method which is a new data processing technique for Acoustic Fish Assessment System.
In this paper we discuss the results of real time prediction for Volume Scattering Strength which is measured in a short interval (10 seconds) by using the above equipment.
First we assume that Volume Scattering Strength x (t) is a Stationary Auto Regressive Process and predict them by linear combination of the previous setting of order M
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Next we discuss the Coherency and Frequency Response Function between original data and prediction data in order to estimate the efficiency of prediction in the: Frequency domain.
Lastly we define the estimation function such as
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and discuss relationshlp between ε and correlated-width.
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© The Japanese Society of Fisheries Science
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