| 台湾海峡近海水声信道传递函数仿真研究 |
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| 引用本文： | 陶毅,许肖梅,陈东升.台湾海峡近海水声信道传递函数仿真研究[J].系统仿真学报,2007,19(16):3639-3642. |
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| 作者姓名： | 陶毅 许肖梅 陈东升 |
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| 作者单位： | 厦门大学海洋与环境学院,厦门,361005;水声通信与海洋信息技术教育部重点实验室,厦门,361005 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 水声信道传递函数特性对水声通信系统的性能有着重要的影响。采用美国海军GDEM（generalized digital environmental model）中全球气候态月平均声速数据,基于BELLHOP射线传播模型,对台湾海峡近海北、中、南部三个站点在不同季节的声速剖面下的传递函数进行了仿真研究。仿真结果表明,台湾海峡近海浅海声信道的传递函数为锯齿状,间断出现子通带。平均子通带宽度与声速剖面和海水的深度的变化密切相关。
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| 关 键 词： | 水声信道 传递函数 BELLHOP射线模型 仿真 |
| 文章编号： | 1004-731X（2007）16-3639-04 |
| 收稿时间： | 2006-06-20 |
| 修稿时间： | 2006-06-202006-09-15 |
Simulation Research on Transfer Function for Shallow Water Acoustic Channel of Taiwan Straits |
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| TAO Yi,XU Xiao-mei,CHEN Dong-sheng.Simulation Research on Transfer Function for Shallow Water Acoustic Channel of Taiwan Straits[J].Journal of System Simulation,2007,19(16):3639-3642. |
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| Authors: | TAO Yi XU Xiao-mei CHEN Dong-sheng |
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| Institution: | 1 .College of Oceanography and Environmental Science of Xiamen University, Xiamen 361005, China; 2.Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, Ministry of Education, Xiamen 361005, China |
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| Abstract: | The characteristics of transfer function of underwater channel have important impact on performance of underwater communication system. The channel transfer function of three locations in north, middle and south of Taiwan straits were simulated respectively, based on BELLHOP ray model and climatic month mean sound speed profile from GDEM (generalized digital environmental model) of USA Navy. Simulation results indicate that the transfer function of shallow water channel in Taiwan straits appears jagged with sub-passband. Mean width of sub-passband is closely related with the sound speed and depth of water. |
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| Keywords: | underwater acoustic channel transfer function BELLHOP model simulation |
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