| 浅海声信道信号时间相关特性研究 |
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| 引用本文： | 毛岱山.浅海声信道信号时间相关特性研究[J].海洋技术,2006,25(2):67-69,120. |
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| 作者姓名： | 毛岱山 |
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| 作者单位： | 厦门大学海洋系,福建,厦门,361005 |
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| 基金项目： | 福建省自然科学基金资助项目(A0310001) |
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| 摘 要： | 水声信道中信号的时间相关特性是水声微弱信号相关检测的理论基础和具体参数选择依据。文中以厦门港典型的浅海声信道中信号的时间自相关和互相关特性进行实验研究。结果指出,信号有强的时间相关性,无论自相关或互相关性均比海洋环境噪声强得多,因此在水声信道中采用时间相关检测可望达到优良的抗噪声效果。
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| 关 键 词： | 水声信道 自相关 互相关 抗噪声 |
| 文章编号： | 1003-2029（2006）02-0067-04 |
| 收稿时间： | 2005-09-11 |
| 修稿时间： | 2005-09-11 |
Study on the characteristic of time-correlation in the shallow water acoustic channel |
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| MAO Dai-shan.Study on the characteristic of time-correlation in the shallow water acoustic channel[J].Ocean Technology,2006,25(2):67-69,120. |
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| Authors: | MAO Dai-shan |
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| Institution: | MAO Dai-shan |
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| Abstract: | The characteristic of time-correlation in the shallow water acoustic channel is foundation of the detection of weak underwater acoustic signals with correlation and the standards of parameter selection.In this forum I research on the self-correlation and cross-correlation characteristics in Xiamen Port,the representative shallow water acoustic channel,I'll prove with actual experiment data that the signal has a strong response on time-correlation,both self-correlation and cross-correlation are much stronger than the noise.So we hope we can gain excellent anti-noise effect with time-correlation in detect of underwater acoustic signal in shallow water. |
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| Keywords: | underwater acoustic channel self-correlation cross-correlation anti-noise |
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