| 基于时-空离散化的海底混响时间序列仿真方法 |
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| 引用本文： | 陈文剑,孙辉,张明辉,朱广平.基于时-空离散化的海底混响时间序列仿真方法[J].声学技术,2011,30(2):173-177. |
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| 作者姓名： | 陈文剑 孙辉 张明辉 朱广平 |
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| 作者单位： | 哈尔滨工程大学水声技术国防科技重点实验室,哈尔滨,150001 |
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| 摘 要： | 以海底混响为研究对象,提出了一种混响仿真时通过时空离散化处理降低计算量的方法.以混响的点散射模型为基础,海底混响认为是海底散射体对发射信号的响应,用线性网络对其进行描述,得到冲击响应函数.通过对冲击响应函数时间离散射化处理,相应的对海底进行空间区域划分,进而把散射体散射信号叠加时的叠加总数转化为时间域离散化之后的时间段...
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| 关 键 词： | 海底混响 时-空离散化 点散射模型 |
| 收稿时间： | 2010/4/1 0:00:00 |
| 修稿时间： | 2010/6/10 0:00:00 |
A method of simulating seafloor reverberation based on time-space discretization |
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| CHEN Wen-jian,SUN Hui,ZHANG Ming-hui and ZHU Guang-ping.A method of simulating seafloor reverberation based on time-space discretization[J].Technical Acoustics,2011,30(2):173-177. |
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| Authors: | CHEN Wen-jian SUN Hui ZHANG Ming-hui and ZHU Guang-ping |
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| Affiliation: | CHEN Wen-jian,SUN Hui,ZHANG Ming-hui,ZHU Guang-ping (National Laboratory of Underwater Acoustic Technology,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Taking the seafloor reverberation as a studied object,a method of simulating reverberation is proposed based on time-space discretization to increase the computing speed.The reverberation is the linear response of scatters to the emitting signal,and can be described by a linear network to obtain the impulse response function.By the time discretization of the impulse response function and regional division of the seafloor,the summation of scatters is translated into the total number of time slice,and the com... |
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| Keywords: | sea bottom reverberation time-space discretization point-scattering model |
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