hurst-exponent

This a WLS meshfree code have been developed for curve fitting problems. this archive contains Matlab subroutines

现代信号处理中常用的两种变换——短时傅里叶和魏格纳变换的matlab函数程序(two usual transformtions in modern signal processing_STFT and WVD. These are matlab codes. )

通过PID技术，可以实现在各种扰动下的风电变桨。可以有效的弃风。(Through the PID technology, can realize the wind power is analyzed.studying under various disturbances. To abandon the wind.)

the graphs where you can find how the function looks like - sinus

This paper discusses the impact of HVDC on Power System Stability and proposes a new control mechanism based on Fuzzy set theory to augment dynamic performance of a multi-machine power system. To have good damping characteristics over a wide range of operating conditions, deviations in speed and acceleration of the machines are chosen as the input signals to the fuzzy controller. These input signals are first characterized by a set of linguistic variables using fuzzy set notations .The fuzzy relation matrix allows a set of fuzzy logic operations that are performed on controller inputs to obtain the desired output. The effectiveness of the proposed controller is demonstrated by a multi-machine system example. The performance of this fuzzy controller, in comparison to the conventional fixed gain controller, demonstrates the efficacy of this new fuzzy PID controller. Index Terms—HVDC, Eliminated variable

This is the MATLAB platform on setting up the simulink model. Hope everyone to correct mistakes

A code of SNR with ISI in optical communication

矩量法是求解电磁场边界值问题中一种行之有效的数值方法.它所做的工作是将积分方程化为差分方程,或将积分方程中积分化为有限求和,从而建立代数方程组,故它的主要工作量是用计算机求解代数方程组.所以,在矩量法求解代数方程组过程中,矩阵规模的大小涉及到占用内存的多少,在很大程度上影响了计算的速度.如何尽可能的减少矩阵存储量,成为加速矩量法计算的关键.此处介绍了方法(MoM is the solution of electromagnetic field boundary value problem in an effective numerical method. It is the work done by integral equations into differential equations, or integral equations into a finite sum of points, so as to establish algebraic equations Therefore, it is the main workload of the computer to solve algebraic equations. Therefore, in the moment method for solving algebraic equations, the matrix size relates to the amount of memory, to a large extent affected the speed of calculation. how to maximize the reduction of matrix storage has become accelerated MoM calculation of the key. introduce the method here)

说明：  粒子群优化算法的基本思想是通过群体中个体之间的协作和信息共享来寻找最优解．(Particle swarm optimization algorithm based on the idea that groups of individuals through collaboration and information sharing to find the optimal solution.)

适用于油田探井布局计算的快速模拟退火算法matlab程序。(The calculation applies to oil field exploration wells layout fast simulated annealing algorithm matlab program.)