session6

Resynthesis of speech, you can modify time-scale.

这是自己写的实现哈夫曼编码的几个MATLAB程序，可以直接运行(This is the realization of their own to write several MATLAB programs Huffman coding, can run)

用Matlab编程，其中包括，FFT算法，FIR，IIR和卷积的代码(With Matlab programming, including, FFT algorithm, FIR, IIR, and convolution code)

模式识别工具箱 包含大部分duda的《pattern classification》的习题程序(pattern recognition toolbox)

this is a matlab code

计算信号的短时傅里叶变换，对信号进行时频分析(Calculate signal short-time Fourier transform, the signal time-frequency analysis )

说明：  得到了地震波型，放入代码程序中，可以得出反应谱(We get the seismic wave type, put it into the code program, we can get the response spectrum)

总结了matlab与vc混合编程的三种常用方法，并结合了具体的实例，简单介绍了基本的操作(Matlab and vc summarized three common hybrid programming method, and specific examples, a brief introduction of the basic operations)

this code can embedding a watermark in an image

小波包分析提取振动信号中的特征频率，有较好的参考价值，借鉴了主成分分析算法（PCA）。( Wavelet packet analysis to extract vibration signal characteristic frequency, There are good reference value, It draws on principal component analysis algorithm (PCA).)