codageGray_MDA4

文档中是OFDM信号的MATLAB源码，用于产生简单的ofdm信号，以供大家讨论学习。(The document is OFDM signal MATLAB source code used to generate a simple ofdm signals for our discussion to learn.)

对信号进行短时傅立叶变换，输出的序列在进行循环平稳处理，最后用mesh函数进行3维画图。()

光的干涉衍射仿真程序光的干涉衍射仿真程序光的干涉衍射仿真程序(The interference of the diffracted light interference of light diffracted simulation program simulation program diffraction light interference simulation program)

说明：  变电站选址程序，对研究选址，能源选址的人拿来研究有用，(The procedure of substation location is useful for people who study location and energy location,)

Normalized LMS adaptive filtering algorithm.

实现了嫦娥奔月过程中的卫星变轨的动态演示，matlab的动态画面编程。(Moon in the process of realization of the satellite orbit dynamic presentation, matlab programming dynamic picture)

Aerodynamic Forces and Moments

K-mean matlab code example

把HHT和神经网络结合起来，识别出是否故障。对于HHT变换，这里用到的是它的IMF分解，然后用能量理论来判别哪些模组是虚假分量，哪些是是真实分量。对于EMD分解后的谱进行特征提取 ，利用的理论基础就是模糊熵。计算出真实 分量的模糊熵，作为输入层；输出层为两个神经元，为0（故障 ）1（正常 （正常 ）判别该信号是否出现故障。(The combination of HHT and neural network to identify whether the fault. For the HHT transform, here is the use of its IMF decomposition, and then use the energy theory to determine which module is false, which is true component. The theoretical basis for the feature extraction of the spectrum after EMD decomposition is fuzzy entropy. The fuzzy entropy of the real component is calculated, as the input layer, the output layer is two neurons, which is 0 (fault) 1 (normal) to determine whether the signal is faulty.)

基于正交基的信道估计，用于高速移动系统的信道估计(Orthogonal basis based channel estimation for high-speed mobile system channel estimation)