Meteorological-flux

PARTICLE SWARM OPTIMIZER AND SOME BENCHMARK PROBLEM FOR GLOBAL OPTIMIZATION ALGORTIRHMS, IMPLEMENTED IN MATLAB DIM, LOW AND UP LIMITS CAN BE FOUND IN RELATED FILE

光纤光栅包层不同时，纤芯基模折射率与波长之间的关系(the relationship between the refractive index of the core fundamental mode fiber grating wavelength between cladding)

matlab被动悬架的仿真模型基于Simulink软件(matlab passive suspension simulation model based on Simulink software)

状态模型的极大似然估计，使用EM算法，以及卡尔曼滤波。(This supplementary note discusses the maximum likelihood esti-mation of state space models using Expectation-Maximization (EM) algorithm and bootstrap procedure for statistical inference. A Matlab program script implement-ing the Kalman ¯ lter, Kalman smoother and EM algorithm)

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.)

说明：  简单实现了基于项目的协同过滤代码，MATLAB实现，需要解压(Simple implementation of project-based collaborative filtering code)

说明：  谐波小波波程序，包括几个例子，让大家可以对谐波小波处理信号有更加透彻深入的理解和认识。。。(Small wave harmonic procedures, including a few examples, so that we can handle signals of harmonic wavelet a more thorough understanding of and awareness. . .)

This is a simple, yet useful Bloch equation simulator that runs in Matlab. It is written as a MEX function so that it can run reasonably quickly, and simulate RF and a 1D gradient waveform. Simulations can be run for a range of spatial offsets and frequency offsets.

QAM PSK 信号的调制星座图代码,实现调制信号的星座图显示和比较(the code of QAM&PSK Signal modulation constellation diagram )

求解微分方程的解析解,这个工具可以代替R-K法等常用的数值求解方法。(the analysis solution of the differential equation)