Discrimination of Underwater Materials Located on a Declined Seabed
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概要
- 論文の詳細を見る
A circular six-receiver array centered around the transmitter and a compensation method are proposed in order to improve the discrimination ratio of underwater materials located on a declined seabed. The signal intensity reflected from the seabed is employed as data for neural network processing. Compared to the distribution of the intensities of the original data acquired from the declined seabed, the compensated values approach those acquired from a planar seabed, which are employed as the standard learning data for neural network discrimination. A comparison of the results of discrimination of the underwater materials with and without compensation verifies the efficiency of the method. However, the intensity of the echo signal decreases with increasing angle of decline, and the discrimination ratio is reduced accordingly. The valid limitation of the angle of decline for the compensation method is about 9°, according to the discrimination results obtained under the conditions of different angles of decline.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-05-30
著者
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Hoshino Tomofumi
Department Of Electronics Engineering Chiba Institute Of Technology
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Tao Liang
Department Of Electrical Electronics And Computer Engineering. Faculty Of Engineering Chiba Institut
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Tao Liang
Department of Electronics Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Motooka Seiichi
Department of Electrical, Electronics and Computer Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Motooka Seiichi
Department of Electronics Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Hoshino Tomofumi
Department of Electronics Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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