1）了解小波分解与小波包分解概念区别与联系；

2）了解小波包的分解和重构算法积；

3）用matlab编程对信号进行小波包分解及小波能量图的绘制。

-1) to understand the wavelet decomposition and wavelet packet decomposition of differences and relations between concepts　2) to understand the wavelet packet decomposition and reconstruction algorithms of product　3) the signal using matlab programming wavelet packet decomposition and wavelet energy mapping.