| 基于小波包变换及改进阈值法则的水声信号压缩 |
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| 引用本文： | 赵亚丽. 基于小波包变换及改进阈值法则的水声信号压缩[J]. 应用科技, 2009, 36(3): 8-10 |
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| 作者姓名： | 赵亚丽 |
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| 作者单位： | 中北大学信息探测与处理技术研究所,山西,太原,030051 |
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| 摘 要： | 文中提出一种将小波包变换与改进的能量保留阈值法相结合的水声信号压缩方法，并讨论了该方法实现过程中小波包的选取、小波包分解算法、改进的能量保留阈值确定等问题，最后进行了仿真分析．仿真结果表明，本算法对水声信号压缩编码效果较为理想．
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| 关 键 词： | 小波包 数据压缩 阈值 |
Compression and coding of underwater acoustic signal based on wavelet packet transform and the improved threshold principle |
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| ZHAO Ya-li. Compression and coding of underwater acoustic signal based on wavelet packet transform and the improved threshold principle[J]. Applied Science and Technology, 2009, 36(3): 8-10 |
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| Authors: | ZHAO Ya-li |
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| Affiliation: | ZHAO Ya-li (Institute of Information Detecting and Processing Technology, North University of China, Taiyuan 030051, China) |
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| Abstract: | The wavelet packet transform and the improved threshold principle were applied to the underwater acoustic signal compression. And then the authors discussed the selection of wavelet packet, the wavelet packet decompression algorithm and the determination of the improved threshold principle. The simulation shows the result of decompression is good. |
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| Keywords: | wavelet packet data compression threshold |
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