quad2dg

利用时域有限差分法(FDTD法)对二维时谐电磁场进行模拟(Using finite difference time domain method (FDTD method) on two-dimensional time-harmonic electromagnetic field simulation)

This is simple simulation of qpsk of ber.

说明：  利用小波变换实现对故障信号的特征提取 构造特征向量(Wavelet transform feature extraction of fault signals structural feature vector)

In this paper, we show how support vector machine (SVM) can be employed as a powerful tool for $k$-nearest neighbor (kNN) classifier. A novel multi-class dimensionality reduction approach, Discriminant Analysis via Support Vectors (SVDA), is introduced by using the SVM. The kernel mapping idea is used to derive the non-linear version, Kernel Discriminant via Support Vectors (SVKD). In SVDA, only support vectors are involved to obtain the transformation matrix. Thus, the computational complexity can be greatly reduced for kernel based feature extraction. Experiments carried out on several standard databases show a clear improvement on LDA-based recognition

LEACH (Low-Energy Adaptive Clustering Hierarchy)

说明：  在matlab环境下，利用近邻法解决非线性分类问题(In the matlab environment, the use of neighbor method to solve nonlinear classification problems)

buck pwm dc-dc chopper for many usage.

this code is in Matlab.and this code od for Speaker recognitoin system.

MATLAB S.J.Chapman《MATLAB编程》中文版修正版(MATLAB SJChapman )

数值方法（MATLAB版）第四版的上机答案 语言是matlab 一般每个题目一个文件夹 主程序一般为main文件(Numerical methods (MATLAB version) fourth edition of the machine language is the answer to every problem a general matlab folder as the main file main general)