dx20

将指纹图像分为好、中、差三类，然后根据典型的质量指标在各类质量中的影响度来设定相关的权重，以此可以更准确的表示图像质量，提高指纹识别的后续处理的准确性，系统的稳定性(Fingerprint image is divided into good, normal and poor, and then the typical quality indicators in the quality of the impact of various degrees to set the associated weight, this can be a more accurate representation of image quality and follow-up to deal with fingerprint recognition accuracy, system stability)

说明：  MATLAB以矩阵作为数据操作的基本单位，还提供了十分丰富的数值计算函数。MATLAB和著名的符号计算语言Maple相结合，使得MATLAB具有符号计算功能。(MATLAB with matrix as the basic unit of data manipulation, it also provides a very rich numerical functions. MATLAB and the famous combination of symbolic computation language Maple, MATLAB has a symbolic computing makes.)

说明：  使用二次样条小波的多尺度小波分解及重构算法，为非抽样小波(wavelet transform using quadratic spline wavelet filters)

matlab codes for segmentation

matlab小波工具箱,详细介绍了各种函数的使用方法(matlab wavelet tool kit.detail description of the wavelet using method.)

Hi.this is multilayer perceptron whith bp learning

运用matlab编写的密码登录窗口 亲测有效(Password login window written by Matlab is valid)

计算微分方程系统的Lyapunv exponent,在非线性动力学和有关混沌的研究中非常有用。(calculated differential system Lyapunv exponent, Nonlinear Dynamics and Chaos in the study very useful.)

严格按照BP网络计算公式来设计的一个matlab程序,对BP网络进行了优化设计 优化1：设计了yyy，即在o(k)计算公式时，当网络进入平坦区时(<0.0001)学习率加大， 出来后学习率又还原 优化2：v(i,j)=v(i,j)+deltv(i,j)+a*dv(i,j) (A Matlab procedures in strict accordance with the BP network computing formula to design, the optimization design was carried out on BP network Optimization design of 1: YYY, that is O (k) in the formula, when the network into the flat area (<0.0001) learning rate increase, after learning rate and reduction Optimization of 2:v (I, J) =v (I, J)+deltv (I, J)+a*dv (I, J) )

i am uploade matlab code for perfomance analysis of OFDM systyem using different modulation scheme.it simulatoion result is so interesting to propose the modulation scheme when OFDM system is use in application .