fft

％ 该函数对区间进行裁减即Py投影，返回裁剪后的区间信号( The function of the interval that the process of reducing the projection Py, returning after the interval signal clipping)

说明：  本程序是用MATLAB编写，以后请MATLAB高手多进来切磋，请各位高手指教，看了后给点评价。谢谢！(this program is prepared using MATLAB, after many requests come in MATLAB master skills, the experts advise you please, after reading them to the point evaluation. Thank you!)

Successful classification ratio dynamic over the number of terminal nodes: cross-validation

浙江大学的关于提取图像背景的报告（matlab），里面的方法给我很多启示，希望也能给你们一些启示，由于本人是初学者，有些方法还是看不懂！(Zhejiang University, on the extraction of image background report (matlab), inside the method for giving me a lot of inspiration, hope and also give you some inspiration, because I am a beginner, and some way to watch or do not understand!)

m序列移位寄存器 完成31位m序列。扩频通信中重要(M series shift register)

A Novel Image Reconstruction Algorithm Based on Concatenated Dictionary This paper presents a novel method for image reconstruction, which decomposites the image by concatenating a redundant dictionary of several bases and then reconstruct the image efficiently by means of Matching Pursuit algorithm. The proposed method constructs the concatenated dictionary with cosine bases, wavelet bases and contourlet bases, which will lead to a better approximation of the original image. The experimental results show that the proposed algorithm can greatly reduce the computational complexity and generate a better reconstruction effect compared with previous methods.(A Novel Image Reconstruction Algorithm Based on Concatenated Dictionary This paper presents a novel method for image reconstruction, which decomposites the image by concatenating a redundant dictionary of several bases and then reconstruct the image efficiently by means of Matching Pursuit algorithm. The proposed method constructs the concatenated dictionary with cosine bases, wavelet bases and contourlet bases, which will lead to a better approximation of the original image. The experimental results show that the proposed algorithm can greatly reduce the computational complexity and generate a better reconstruction effect compared with previous methods.)

Split PML 2D TE FDTD

这是一个802.11a物理层OFDM技术的仿真与研究，可以观察各示波器输出波形(This is a simulation and research of 802.11a s OFDM physical layer, which can see its wave form.)

this folder contain universal dataset for classification

matlab做的单相全桥半波整流模型，移相范围为0~180度(matlab to do a single-phase full-bridge half-wave rectifier model, phase ranges 0 to 180 degrees)