classic_spectral_estimation

it is the matlab code of particle swarm optimization with a test function that can be change..

混沌模糊算法函数，调用此函数可以解决许多初学者的疑惑(Chaotic fuzzy arithmetic functions, calling this function can solve many doubts beginners)

小波分析由于具有同时分析信号时域和频域的特性，所以使用小波分析技术对检测的信号进行变换，然后对具有故障特性的信号进行重构，最后通过希尔伯特变换进行解调和细化频谱分析，从而轴承中的故障信息成分就可以检测出来，以判断轴承发成故障的部位。(Wavelet analysis has the characteristics of both time and frequency domain, so the wavelet analysis technique is used to transform the signal, then the signal is reconstructed. Finally, the fault information components of the bearing can be detected by Hilbert transform.)

采用二进制编码方法，利用遗传算法求函数的极小值。给出源程序，并加注释。(Using the binary coding method, the genetic algorithm is used to find the minimum value of the function. Give the source code and add annotations.)

说明：  基于Matlab编写的手写字符特征提取代码(Matlab-based feature extraction handwritten character written in the code)

说明：  扩频通信中的两大常见扩频方式，直接序列扩频和跳频(Direct sequence spread spectrum and frequency hopping are two common spread spectrum methods in spread spectrum communication)

This model is very much useful in converting the normal three phase voltages to the corresponding alpha beta components

matlab贝叶斯分类器，基于matlab的仿真(Bayesian classifier matlab, matlab-based simulation)

残差定阶方法的例程，附模型所需的数据，希望对大家有用。(The residual method of order determination routine, with the required data model, the hope that useful.)

归一化交叉相关图像匹配算法（NCC）的Matlab程序，简单易懂！(NCC code)