dcpwm1

this code implement a fingerprint recognition method

this articl is about the LNMs,and it used the drude model to compute the materials property ,and is also a good example the tell FDTD applications!

用矩量法求半波振子天线的E面和H面方向图，并与解析解比较(Moment Method with the half-wave dipole antenna in the E plane and the H plane patterns, compared with the analytical solution)

协作频谱感知理论and和or的比较有程序(Cooperative spectrum sensing theory and and or program)

厄米高斯光束的仿真软件，可仿真基本的厄米高斯光束及其光斑。(Hermite Gaussian beam simulation software can simulate basic Hermite Gaussian beam and spot.)

说明：  利用BP神经网络设计指纹识别算法，给神经网络提供每一模式类中的一些样本作为训练样本。BP网络经过学习，不仅能够识别已训练过的样本，而且能够识别未出现过的样本。利用神经网络的泛化能力，提高指纹识别算法的识别率，图像增强、提取指纹特征(BP neural network is the first mock exam to design fingerprint recognition algorithm, and it provides samples for each neural network as training samples. After learning, BP network can not only recognize the trained samples, but also recognize the samples that have not appeared. The generalization ability of neural network is used to improve the recognition rate of fingerprint recognition algorithm, image enhancement and fingerprint feature extraction)

说明：  该内容为变压器差动保护的模型搭建图，可以运行，能够进行区内区外故障的仿真实验，并得出正确的结论(transformer protation)

　VC + + 与MATLAB 混合编程,可以将VC 优秀的可视化编程能力和MATLAB 强大的计算能力结合起来。 分析了C 语言与MATLAB7. x 在接口的特点,详细介绍了VC + + 6. 0 与MATLAB7. x 混合编程的三种方法: MATLAB 引擎、MATLAB 编译器和MATLAB COM 编译器(VC++ Mixed with MATLAB programming, can be excellent VC Visualization MATLAB programming capacity and computing power together. Analysis of the C language and MATLAB7. X in the interface characteristics described in detail VC++ 6. 0 and MATLAB7. X mixed programming in three ways: MATLAB engine, MATLAB Compiler and MATLAB COM compiler)

matlab 经典算法，有差值，解方程，画图的源程序。(matlab classical algorithm, there is difference, solve equations, drawing of the source.)

说明：  该函数用来计算时间序列的最大Lyapunov 指数--Wolf 方法(The function used to calculate the time series of the largest Lyapunov index- Wolf method)