| Presentation | 2017-08-31 Investigation of phase error of sound propagation calculated by wide angle PE method in mid Pacific Ocean Koryu Mineshima, Shunichi Fujii, Takenobu Tsuchiya, Nobuyuki Endoh, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | PE method is a useful method to simulate sound wave propagation in Ocean. However, accuracy of the calculation result is low with inappropriate approximation. In this paper, we calculate the propagation pulse wave in Ocean by changing Pade order. We obtain the phase error of the propagation in the mid Pacific Ocean, and we consider appropriate order from phase error of continuous wave and pulse wave. From the results of the sound field analysis of continuous wave, it is found that accurate analysis at the sound channel is necessary to the fourth order approximation. And, it is found that appropriate order needs the sixth order approximation at the deep depth. In addition, from the results of the sound field analysis of pulse wave, it is found that accurate analysis is necessary to the sixth order for accurate calculation in analyzing at all depth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Pad? approximation, / PE method / Phase error |
| Paper # | US2017-47 |
| Date of Issue | 2017-08-24 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2017/8/31(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Minoru Kurosawa(Tokyo Inst. of Tech.) |
| Vice Chair | Nobuyuki Endoh(Kanagawa Univ.) / Shinichi Takeuchi(Toin Univ. of Yokohama) |
| Secretary | Nobuyuki Endoh(Univ. of Toyama) / Shinichi Takeuchi(Univ. of Tokyo) |
| Assistant | Takenobu Tsuchiya(Kanagawa Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation of phase error of sound propagation calculated by wide angle PE method in mid Pacific Ocean |
| Sub Title (in English) | |
| Keyword(1) | Pad? approximation, |
| Keyword(2) | PE method |
| Keyword(3) | Phase error |
| 1st Author's Name | Koryu Mineshima |
| 1st Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 2nd Author's Name | Shunichi Fujii |
| 2nd Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 3rd Author's Name | Takenobu Tsuchiya |
| 3rd Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 4th Author's Name | Nobuyuki Endoh |
| 4th Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| Date | 2017-08-31 |
| Paper # | US2017-47 |
| Volume (vol) | vol.117 |
| Number (no) | US-190 |
| Page | pp.pp.7-10(US), |
| #Pages | 4 |
| Date of Issue | 2017-08-24 (US) |