zhangyuEPS

matlab的小波分解，重构，去噪以及能量分析(matlab wavelet decomposition and reconstruction, noise reduction and energy analysis)

DESIGN CONSTRUCTION AND WORKING OF DC MOTOR

To solve an initial value problem, say, equation y = dsolve( Dy = y*x , x ) with y(1) = 1, use of calculus of vaiation

多变量输入、输出、多干扰、非线性和强耦合的复杂系统控制是一个比较困难的问题，常用的控制器可能因为多变量耦合问题难以控制系统。PID神经元网络是一种多层前向神经元网络，它的各层神经元个数、连接方式、连接权值是按照PID控制规律的已有原则和经验确定的，是一种动态的符合控制系统的前向网络。但是由于PID网络初始权值随机取值的原因，每次控制的效果都有所差别，个别情况下控制效果还比较差。本案例研究了基于PID神经元的多变量耦合系统控制，并用PSO算法来优化控制器以取得更好的控制效果。(Multivariable input, output, and more interference, complex nonlinear and strong coupling system control is a more difficult problem, commonly used multivariable controller may be because the problem is difficult to control the coupling system. PID neural network is a multi-front to neural networks, its number of neurons in each layer, connection, connection weights are in accordance with the existing principles and experience to determine the PID control law is a dynamic compliance before the control system to the network. However, due to the random initial weights of the network PID values ​ ​ of reason, every time there are differences in the effect of control and in some cases the control effect is still relatively poor. This case study of multivariable coupling system based on PID control neurons, and with PSO algorithm to optimize the controller to achieve better control effect.)

用于指导SIMULINK环境下的电力系统仿真！(guiding for Power System Simulation under SIMULINK environment!)

说明：  基于多卫星的GPS中频信号生成方法，通过分析单卫星信号的模拟搭建，改进为多卫星的实现方法。(Based on the multi-satellite s GPS intermediate frequency signal production method, through analyzes the single satellite signal the simulation build, improves realizes the method for the multi-satellites.)

本代码是对Henon 映射的编写及恢复，可以完成一定大小的图像处理。(This code is written and recovery Henon map, you can complete a certain size of image processing.)

说明：  偏最小二乘法的原始程序，粒子群优化算法对支持向量机SVM的优化。对初学者有帮助。套用模型，可以改PSO-SVR。(Partial least squares method of the original program, particle swarm optimization algorithm for support vector machine SVM optimization. It is helpful for beginners. Applying the model, PSO-SVR can be changed.)

水文趋势、突变点分析的matlab相关程序——水文时间序列变点分析的贝叶斯方法(Hydrological trends point mutation analysis matlab procedures- hydrological time series change point analysis, Bayesian methods)

轴承故障信号vmd分解及输出频谱图和幅值图，内含main、vmd及输出频谱图和幅值图三个程序，直接用main就行(VMD decomposition of bearing fault signal and output spectrum and amplitude diagram)