laplacian_enhancement

％ EM algorithm for k multidimensional Gaussian mixture estimation ％ ％ Inputs: ％ X(n,d) - input data, n=number of observations, d=dimension of variable ％ k - maximum number of Gaussian components allowed ％ ltol - percentage of the log likelihood difference between 2 iterations ([] for none) ％ maxiter - maximum number of iteration allowed ([] for none) ％ pflag - 1 for plotting GM for 1D or 2D cases only, 0 otherwise ([] for none) ％ Init - structure of initial W, M, V: Init.W, Init.M, Init.V ([] for none) ％ ％ Ouputs: ％ W(1,k) - estimated weights of GM ％ M(d,k) - estimated mean vectors of GM ％ V(d,d,k) - estimated covariance matrices of GM ％ L - log likelihood of estimates ％( EM algorithm for k multidimensional Gaussian mixture estimation Inputs: X (n, d)- input data, n = number of observations, d = dimension of variable k- maximum number of Gaussian components allowed ltol- percentage of the log likelihood difference between 2 iterations ([] for none) maxiter- maximum number of iteration allowed ([] for none) pflag- 1 for plotting GM for 1D or 2D cases only, 0 otherwise ([] for none) Init- structure of initial W, M, V: Init.W, Init.M, Init.V ([] for none) Ouputs: W (1, k)- estimated weights of GM M (d, k)- estimated mean vectors of GM V (d, d, k)- estimated covariance matrices of GM L- log likelihood of estimates)

采用四步相移方法求取相位主值，通过滤波对无效的像素点进行滤除。(With the four step phase shifting method to obtain the main phase, through the filter to filter out pixels invalid.)

说明：  数字图像处理--同态滤波--matlab程序(Digital image processing- homomorphic filtering- matlab program)

光纤相干通讯数字相干接收机，算法和子系统。一篇很精简全面的总结。(Digital coherent optical receiver algorithms and subsystems in fiber coherent optical communication. A very good brief summary.)

光纤陀螺输出误差的allan方差分析，基于K均值的PSO聚类算法,使用matlab实现智能预测控制算法。( allan FOG output error variance analysis, K-means clustering algorithm based on the PSO, Use matlab intelligent predictive control algorithm.)

说明：  bss盲源分离入门有帮助的源码：matlab编写(Blind Source Separation bss entry helpful source code: matlab prepared)

波克林顿法分析半波振子的电流分布，方向图，增益大小，三维方向图(Analysis of Clinton' s half-wave wave oscillator current distribution, pattern, gain size, three-dimensional pattern)

峰值信噪比的源函数，数值越大，表示图像越清晰，反之，图像模糊。(Source function peak signal to noise ratio, the greater the value, the image is more clear, on the contrary, the image is blurred.)

这是多相滤波器设计MATLAB仿真程序，献给大家做个参考(This is a polyphase filter design MATLAB simulation program, dedicated to be a reference to)

基于消除趋势项法的振动信号预处理研究.在MATLAB环境中对基于消除趋势项法的振动信号预处理的实例仿真分析。有 最小二乘法去趋势；正弦信号去趋势和滑动平均法等(In the MATLAB environment to eliminate the instance of the trend of the vibration signal preprocessing based on simulation analysis based on the signal preprocessing to eliminate the vibration of the trend of law. Least squares method to the trend sinusoidal signal to the trend and moving average method)