nongcun

Quartic Spline weight function from "An Introduction to Meshfree Methods and Their Programming [G.R. Liu, Y.T. Gu] " the orginal code is in fortran but this code is in matlab

matlab仿真的，功能是实现相关峰值的提取。能够在低信噪比下得到效果较好的相关峰(matlab simulation, feature extraction is to achieve correlation peak. Able to get better low SNR correlation peak)

Matlab程序，用以计算动力系统的各种分岔：同宿，异宿，倍周期和NeimarkSark分岔，以及不变流形和多线性规范型等(Matlab Software of caculations of bifurcations such as Homoclinic,Heterclinic,Flip,Neimarksark bifurcations,Invarant Manifolds)

kernel method 工具箱，包含基本的kernel的使用实例(kernel method toolbox, including the use of examples of the basic kernel)

说明：  列举MATLAB的100个源程序，可供各个层次的人员学习.(MATLAB lists 100 of the source for all levels of learning.)

Program for solving Laplace Equation

Gaussian noise refers to its obey gaussian probability density function (i.e., normal distribution) of the noise. If a noise, its amplitude distribution obeys the gaussian distribution, and its power spectral density is uniformly distributed, has described it as a gaussian white noise. Were not associated with the second order moments of the gaussian white noise, a moment is constant, 所谓高斯噪声是指它的概率密度函数服从高斯分布（即正态分布）的一类噪声。如果一个噪声，它的幅度分布服从高斯分布，而它的功率谱密度又是均匀分布的，则称它为高斯白噪声。高斯白噪声的二阶矩不相关，一阶矩为常数，是指先后信号在时间上的相关性。高斯白噪声包括热噪声和散粒噪声。 (Gaussian noise refers to its obey gaussian probability density function (i.e., normal distribution) of the noise. If a noise, its amplitude distribution obeys the gaussian distribution, and its power spectral density is uniformly distributed, has described it as a gaussian white noise. Were not associated with the second order moments of the gaussian white noise, a moment is constant, refers to the correlation of signal in time. White gaussian noise including thermal noise and shot noise. )

该代码为PCA主成分分析，可用于特征选择，选取贡献最大的前三个主成分(The code for the PCA principal component analysis, can be used for feature selection, select the largest contribution to the first three principal components)

详细讲解OFDM的资料，需要的拿去，我学习使用的资料(OFDM elaborate on the information needs of Na Qu.)

对信号进行FFT、包络、峰值检波、PeakVue处理(The signal FFT, envelope, peak detector, PeakVue treatment)