Lee_filter_1

NUFFT最原始的资料，让你更清晰的了解NUFFT算法。(NUFFT original presentation, so you clearly understand NUFFT algorithms.)

Duffing系统的时域谱图和相空间轨迹绘制，能够帮助初学者很好的理解典型非线性特征(duffing equation Phase plane trajectory)

解决了非线性函数的逼近问题,实现了BP神经网络在非线性函数逼近中的应用。得出了信号的频率与隐含点之间，隐含点与函数逼近能力之间的关系——隐含层神经元数目越多。(Solved the problem of nonlinear function approximation, and realized the application of the BP neural network in nonlinear function approximation. Between signal frequency and implicit points are drawn, implied the relationship between the point and the function approximation ability, the more number of hidden layer neurons. )

This function used to calculate PCA of image.

matlab code for Efficient 2D histogram, no toolboxes needed

Some useful matlab functions

基于MATLAB设计巴特沃斯低通滤波器MATLAB design Butterworth low-pass filter(MATLAB design Butterworth low-pass filter)

说明：  LSB图像信息隐藏，能够用 LSB 算法对图像进行信息隐藏 能够用 LSB 提取算法提取隐藏进图像的信息(LSB image information hiding)

无线传感器网络考虑边开销的拓扑生成算法 对研究WSN拓扑生成有参考作用，考虑边开销和丢包率。很巧妙，很强大的算法，是学习matlab网络仿真的好材料(Wireless sensor networks that considers the cost of the topology generation algorithm to generate a reference of the role of WSN topology, consider the cost side and the packet loss rate. Very clever, very powerful algorithms, network simulation is a good learning materials matlab)

本程序是西电博士开发关于角点检测的程序代码和相关的论文，学习和应用价值极大(Matlab codec of Corner Detection and Classification)