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基于牛顿法，现采用编程来计算最优解，matlab程序和简要说明文档。(newton method for optimization)

一个是用matlab实现指纹识别程序。里面附带指纹图片，并用其作为例子实现指纹图像的匹配。(One is to use matlab to achieve fingerprint identification procedure. Which comes with the fingerprint image, and use it as an example to achieve the matching fingerprint images.)

By using these matlab codes one can simulate awgn in any system and cam add it to any signal for further analysis

sift flow, a new method for decribing the images, it could be applied for many applications

说明：  电路模拟的例程 包括图形 仿真的说明 欢迎大家下载(circuit simulation routines including graphic simulation Note welcome you download)

平板光波导归一化频率和传播模式计算与图解(Planar optical waveguide owned by one frequency and mode of transmission and illustrations )

关于matlab的基础教程。展示如何编写简洁高效，有充分根据的程序。(On the basis of matlab tutorial. Shows how to write simple and efficient, well-founded procedures.)

用于一维周期性层状声子晶体带隙的程序，由两种材料构成(For one-dimensional periodic layered phononic crystal band gap of the program consists of two materials)

S-function is a powerful customized function that fits into the matlab environment.(This pdf contains instructions for build your own s-function.)

小波包分析提取振动信号中的特征频率，与理论分析结果相比，用于建立主成分分析模型。( Wavelet packet analysis to extract vibration signal characteristic frequency, Compared with the results of theoretical analysis, Principal component analysis model for establishing.)