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Analytic study on acoustic interference pattern in shallow water
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作者 CHEN Shouhu ZHAO Lianjun +4 位作者 CAO Jianguo GAO Bing ZHU Mo HU Yuan MA Li 《Chinese Journal of Acoustics》 CSCD 2018年第1期18-34,共17页
Analytic formulas for acoustic interference patterns in shallow water are derived by ray method. Which can be used to guide acoustic measurements with limited horizontal distances. Some necessary approximations are ta... Analytic formulas for acoustic interference patterns in shallow water are derived by ray method. Which can be used to guide acoustic measurements with limited horizontal distances. Some necessary approximations are taken for a concise expression. The analytic for- mulas represent the quantitative relationships between the interference-pattern and the signal frequency, bandwidth, depth of source and horizontal distance. Monofrequent signals, com- plicated signals and frequency-modulated signals are all studied. Several inferences are also deduced from the formulas. Both numerical simulations and experiment data are presented to prove that these formulas and their inferences can describe the critical characters of the acoustic interference pattern in the waveguide with a satisfying precision. 展开更多
关键词 Analytic study on acoustic interference pattern in shallow water
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