emd

说明：  这是录音放音的matlab源程序，程序精短且很实用(This is the audio playback of the matlab source code, procedures and practical short-precision)

基于matlab 的ofdm 通信系统的建模仿真。包括 为有效传输所需的各种技术的实现！(Based on the matlab ofdm communication system modeling and simulation. Including the effective transfer of technologies needed to achieve!)

提取原始信号的功率谱就可以看出在哪个频带的能量比较高，噪声主要集中在哪里，这样就可以专门分析那个频带的噪声(The power extracted the spectrum of the original signal can be seen in which frequency band energy is high, the noise is mainly concentrated in where, so that it can be devoted to the analysis of the frequency band of noise)

数组元素互换Array element swap.(Array element swap)

光纤布拉格光栅中，利用matlab编写介质分层模型，得到反射谱。(Fiber Bragg grating, using matlab preparation of medium layered model obtained reflection spectrum.)

提供了最小方差控制的MATLAB程序以及基于最小方差控制的直接自校正控制。(Provides the minimum variance control of the MATLAB program and direct self-tuning control based on minimum variance control.)

干涉测向仪通过测量入射波到达天线阵列中单元天线之间的相位差,决定入射波的入射角(Interferometer by measuring the incident wave direction finder antenna array element antenna reaches the phase difference between the incident angle of incidence of the decision)

用于车牌识别技术中图像分割，对比几种微分算子的边缘检测和形态学分割(License plate recognition technology for image segmentation, compared to several differential operator edge detection and morphological segmentation)

说明：  光子晶体光纤的数值模拟，用matlab计算光子晶体光纤的模场分布、色散等参数(Numerical simulation of photonic crystal fiber, using Matlab to calculate the mode field distribution, dispersion and other parameters of photonic crystal fiber)

分数阶pid Simulink模型，可作为模块使用。(Fractional pid Simulink model can be used as a module.)