| 主动声纳的自适应显示数据缩减算法 |
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| 引用本文： | 李宇,黄海宁,张春华,李淑秋.主动声纳的自适应显示数据缩减算法[J].应用声学,2006,25(3):156-160. |
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| 作者姓名： | 李宇 黄海宁 张春华 李淑秋 |
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| 作者单位： | 1. 中国科学院声学研究所,北京,100080;中国科学院研究生院,北京,100080
2. 中国科学院声学研究所,北京,100080 |
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| 摘 要： | 本文讨论了主动声纳系统中主动检测结果的数据显示问题.首先介绍传统显示数据缩减的几种算法,在这些基础上,我们提出一种新颖的自适应显示数据缩减算法.此算法利用宽带信号特征和主动检测统计特征,通过分段加权平均并取用子段平均最大值的方法,自适应地缩减待显示数据.仿真结果表明,此算法可以提高数据输出的信息量,减小输出信噪比损失,其性能优于传统的几种显示数据缩减算法,有助于提高人机交互的可靠性,并且算法简单,适于实时实现.
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| 关 键 词： | 主动声纳 数据缩减 自适应 数据显示 |
| 收稿时间： | 2004-11-22 |
| 修稿时间： | 2004-11-222006-01-04 |
An adaptive data reduction algorithm for the display in active sonar |
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| LI Yu,HUANG Hai-Ning,ZHANG Chun-Hua and LI Shu-Qiu.An adaptive data reduction algorithm for the display in active sonar[J].Applied Acoustics,2006,25(3):156-160. |
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| Authors: | LI Yu HUANG Hai-Ning ZHANG Chun-Hua and LI Shu-Qiu |
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| Institution: | 1 Institute of Acoustics, Chinese Academy of Sciences, Beijlng 100080;2 Graduate School of the Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | A new adaptive data reduction algorithm is presented to display large amounts of data on the computer screen of active sonar system. This method adaptively reduces a set of samples to a single value, using the characters of the signal and the statistics of the background. A comparison between this algorithm and conventional ones shows a clear reduction in terms of signal-to-noise loss. This method is easy to apply in the real-time system. |
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| Keywords: | Active sonar Data reduction Adaptive Data display |
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