shibie

lagrage polynomial calculation for numaric computation.

实现speech enhancement的代码 MMSE(Matlab code for speech enhancement, MMSE algorithm.)

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使用matlab编程，实现文件数据游程编码、（7，4）线性码、模拟二元传输信道(Using matlab programming, file data length coding, (7,4) linear code, binary transmission channel simulation)

It is for Face Recognition

　传统的信号理论，是建立在Fourier分析基础上的，而Fourier变换作为一种全局性的变化，其有一定的局限性。在实际应用中人们开始对Fourier变换进行各种改进，小波分析由此产生了。小波分析是一种新兴的数学分支，它是泛函数、Fourier分析、调和分析、数值分析的最完美的结晶；在应用领域，特别是在信号处理、图像处理、语音处理以及众多非线性科学领域，它被认为是继Fourier分析之后的又一有效的时频分析方法。 小波变换与Fourier变换相比，是一个时间和频域的局域变换因而能有效地从信号中提取信息，通过伸缩和平移等运算功能对函数或信号进行多尺度细化分析（Multiscale Analysis），解决了Fourier变换不能解决的许多困难问题。(The traditional signal theory, is based on Fourier analysis based on Fourier transform, and as a kind of global change, it has some limitations. In the actual application of Fourier transform people began to various improved, wavelet analysis produced. Wavelet analysis is a new branch of mathematics, it is functional, Fourier analysis, harmonic analysis, numerical analysis of the crystallization of the most perfect In the fields of application, especially in signal processing, image processing, audio processing as well as many nonlinear scientific fields, it is considered to be the Fourier analysis after another effective time-frequency analysis method. Wavelet transformation and Fourier transform, compared is a time and frequency domain and the local transform can effectively extract information from signal, through the telescopic peace shift etc operation function of the function ? )

This is a matlab file which simulates ac non inv amp

boost电路，用simulink进行电路仿真，boost为已降压型电路，无滤波模块，无单周期控制(boost circuit, circuit simulation using simulink for, boost for the buck circuit, non-filtering module, no single-cycle control)

萤火虫算法，一种新颖的群优化算法，目前比较流行的有两种，一种是FA，一种是GSO，本代码试GSO的实现(glowworm swarm optimization)

simulink s函数的模板及编写步骤(the simulink s function template and write steps)