Estimation of the Travel Time Using the New Measurement Technique for Long-range Transmission
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概要
- 論文の詳細を見る
Ocean acoustic tomography (OAT) is a powerful approach for observation of mesoscale ocean fluctuations. The precise estimation of travel time is required for ocean current measurement. We previously proposed the measurement of travel time using phase information. In this paper, we present the theoretical analysis of phase deviation using the Rice distribution. We then propose a new measurement technique of travel time termed as the complex vector method. We also demonstrate the ability of this method by computer simulation and received signals from OAT experiment in 1999. The preliminary results are promising. We conclude that the proposed estimated method is useful in long-range ocean transmission.
- 2004-05-15
著者
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HACHIYA Hiroyuki
Department of Information & Image Sciences, Chiba University
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Wang Yong
Department Of Agricultural Biotechnology College Of Agriculture And Life Sciences Seoul National Uni
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Nakamura Toshiaki
Department Of Anesthesia Nagasaki Rosai Hospital
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Fujimori Hidetoshi
Japan Agency for Marine–Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
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