xuansuoqiao

IEEE14节点接入一个风电场的牛拉法潮流计算MATLAB程序（含线路和风电机组的参数），里面有注解，方便理解。(IEEE14 Nodes System connected to a wind farm cattle MATLAB rafa power flow calculation (including lines and the parameters of the wind turbines), there are annotations, easy to understand)

FFT with fix point 2*N

说明：  给定求解区间，用最小二乘法给出函数的零点，并给出迭代次数(Given the solution interval, the zeros of the function are given by the least square method, and the number of iterations is given.)

fitness,适应度函数，计算适应度函数，(fitness, fitness function, calculate the fitness function,)

近似熵和互近似熵的matlab代码，用于脑波分析很有用(Approximate entropy and cross approximate entropy matlab code for brain wave analysis useful)

说明：  该程序用有限元方法来处理标量亥姆赫兹方程，其实例是脊形介质波导中的光波。(The functino of the code is to slove Helmholtz equation by using finite element method (FEM). The example is an optical waveguide.)

本程序应用python编程，用到3机9节点算例，数据也给出，可以实现潮流计算。(This program uses python programming, uses 3 machines and 9 nodes to calculate the example, and the data is also given, which can realize the load flow calculation.)

经典的微扰法,包括各种各样的非线性动力学理论的研究方法及其基本原理(Classical perturbation method, including all kinds of nonlinear dynamics theory research methods and its basic principle)

脉动风速功率谱估计,并与标准风谱进行对比(Power spectrum estimation of pulsating wind speed and comparison with standard wind spectrum)

线宽计算，用matlab计算线宽。可以得到的值来分析和使用半导体激光器线宽的联系(linewidth calculator)