RSA 加密

虹膜识别图象归一化处理，把环形虹膜区域归一为一个统一的矩形图象，方便下一步特征提取和匹配。(Iris recognition normalized image processing, the annular iris region normalized to a uniform rectangular images, the next step to facilitate feature extraction and matching.)

图像的平面微分平方和能够反映图像高频分 量的能量。用计算平面微分平方和的方法在空间域上计算相邻像素亮度差值的平方和，对应于在频率域上计算图像高频分量的能量和，此值越大，图像对焦越准确(Differential square image plane and the image can reflect the energy of high frequency. Computational method of Planar Differential squares calculated in the space domain to the square of the difference between the brightness of adjacent pixels and corresponds to the image in the frequency domain calculation of high frequency energy and, this value is larger, the more accurate the image focus)

说明：  符号LMS算法的MATLAB实现 并比较误差性能和收敛速度 结果正确 可以直接使用(MATLAB symbolic realization of LMS algorithm and compare the results of error performance and convergence speed can use proper)

matlab 50道练习题，有助于新手快速提高编程和应用能力(matlab 50 道 exercises to help novice programming and ability to rapidly improve)

一个VSM分类器的具体例程，包含数据文件，调试通过。(VSM classifier a specific routines, including data files, debugging through.)

simulation of OFDM using discrete wavelet transform

this is a matlab program for af relaying,node formation

最小均方误差算法，判决反馈均衡，主要用于水声信道的均衡(lms, decision feedback equilization.)

有信道编码，调制，信道估计等，给出接收信号眼图及系统仿真误码率，信号维数的估计，能量熵的计算，使用高阶累积量对MPSK信号进行调制识别，esprit算法对有干扰的信号频率进行估计。

传号、空号差分码的simulink模拟产生程序(Mark, simulink simulation empty number Differential Code Generator)