提升法小波变换综述，想学习第二代小波变换的朋友不妨看看。-upgrade Law Review wavelet transform, want to learn the second generation wavelet transform a friend to take a look.

pcm的编码与译码，适合通信专业的同学，代码很清楚明了-pcm encoding and decoding for communications professional students, the code was clear and

脉冲编码调制程序，采用A律和u律，可在GUI中显示变换前后波形区别并播放声音。-A Pulse Code Modulation program based on A-law and u-law. Can display in the GUI waveform before-and-after difference and play the sound.

Due to the ever increasing popularity of mobile devices, and the growing number of pixels in digital photography, there becomes a strain on viewing one s own photos. Similar to Desktop PCs, a common trend occurring in the mobile market to com-