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.
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.
出处
《应用科技》
CAS
2009年第3期8-10,共3页
Applied Science and Technology
基金
国家重点基金资助项目(60532080)
关键词
小波包
数据压缩
阈值
wavelet packet
data compression
threshold
