emd_improve

基于morphing论文利用matlab工具编写的一个简单的morphing技术实现的代码，可以下载看一下！(Paper-based morphing tool using matlab prepared a simple morphing technology to achieve the code, you can download a look!)

对K-means聚类算法的改进X-means算法。针对K值如何设定的问题，利用BIC准则判断聚类点数量。同时附有两个初始聚类点的选择程序，自己选吧。(The improved X-means algorithm for K-means clustering algorithm. In view of the problem of how to set the K value, the number of clustering points is judged by the BIC criterion. At the same time, there are two initial clustering points of the selection program, choose it yourself.)

说明：  ofdm系统的matlab仿真程序框架，包括信道编码等(Matlab simulation program framework of OFDM system, including channel coding and so on)

matlab图像处理源代码， 请放心下载(matlab image processing source code, please rest assured Download)

this contains simulated model of 3 phase inverter in 180 degree mode

模糊控制的PID控制模型，一共由两部分组成，分别是模型和m函数。经过多次修正，控制效果很好。(PID control fuzzy control model, consists of two parts, respectively is the model and m function. After several revisions, the control effect is very good.)

An implementation of a disjoint-set data structure using a disjoint set forest.

此程序包括重采样中的最邻近法，双线性内插法，三次卷积法。 (resampling)

qpsk over rayleigh channel

直线阵自然指向性仿真,先根据设定的角频率仿真单频信号A sin(ωt)；再根据阵元间距、入射角度计算得各阵元相对参考阵元接收的信号的时延 τ (dsin(θ))/c。 假设等间隔N基元线阵，入射信号是平面波，那么阵元输出信号为：S_n (t) A sin(ωt+nφ)；其中 φ 2πfτ 为相邻阵元接收信号间的相位差；再将基阵各元输出求和，取最大值max,就得到输出幅度；以入射角为横坐标，幅度为纵坐标作图得直线阵自然指向性。 (Linear array directivity simulation)