practice

说明：  一个OFDM仿真程序，包含matlab源文件。(An OFDM simulation program, including the matlab source.)

说明：  三相整流和单项逆变，该模型能够完成三相交流对单相交流的转换(3 AC-DC-1 AC)

A new coner detection method，refinement the test time and mathematical computation.(A new coner detection method, refinement the test time and mathematical computation.)

说明：  c++ 中使用 matlab 简单画图 开发为环境为vs2010(use matlab in c++)

Dimension reduction using principal component analysis.

复杂网络中，度分布计算，函数，并绘制出度分布的分布图(Complex networks, distributed computing degree, function, and mapping the distribution of out-degree distribution)

The early detection of arrhythmia is very important for the cardiac patients. This is done by analyzing the electrocardiogram (ECG) signals and extracting some features from them. These features can be used in the classification of different types of arrhythmias. In this paper, we present three different algorithms of features extraction: Fourier transform (FFT), Autoregressive modeling (AR), and Principal Component Analysis (PCA). The used classifier will be Artificial Neural Networks (ANN). We observed that the system that depends on the PCA features give the highest accuracy. The proposed techniques deal with the whole 3 second intervals of the training and testing data. We reached the accuracy of 92.7083 compared to 84.4 for the reference that work on a similar data.

利用连续潮流法计算的电压裕度程序，自己编的，大家可以下载交流使用(Continuous flow method using the voltage margin procedures, their own series, you can download exchange use)

很有用的matlab程序.传给你们看看 ,随便看,互相进步,共同分享,快了两 (very useful Matlab procedures. You can look at, casually, between progress and common sharing, the two fast)

信号由三个频率分别为0.01，0.1，0.2的正弦信号组成。 (1)作信号的连续小波变换。 (2)自己选择小波基数，对信号进行多尺度分解，将每一个正弦信号分开。 (3)重建原信号。 (Signal from the three frequencies were 0.01,0.1,0.2 sinusoidal signals. (1) continuous wavelet transform for signal. (2) choose the wavelet base, multi-scale decomposition of signals, a sinusoidal signal of each separate. (3) reconstruction of the original signal.)