SVM-RFE

说明：  啁啾光纤光栅的程序，反射谱情形，很不错。(Chirped fiber grating process, reflection spectra of the situation, very good.)

stepper motor controller gui using parallel port interfacing by matlab programming

利用遗传算法（实数编码）实现一阶滞后模型的PID参数寻优自整定，可以在工程中使用！！(Using genetic algorithms (real coding) to achieve the first-order lag model of PID parameter optimization auto-tuning can be used in the project!)

法国人的emd算法，2007年的版本，镜像延拓，效果已经很不错了(French emd algorithm, the 2007 version, mirror extension, the effect is quite satisfactory)

正交频分复用其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。(Orthogonal Frequency Division Multiplexing)

Orbita.m Programa para dibujar un periodo de la orbita de un satélite apartir de los parámetros orbitales Programado a partir de la hoja TUNDRA2.pdf Ramon Martínez, 20-12-2006 Parámetros k=398613.52 en (km^3)/(s^2) Re = 6377 km h=814.5 a=Re+h e=0 OmegaRot=0.9856 º /day n = sqrt(k/(a^3)) p = a*(1-(e^2)) J2=0.00108263 cos_i = OmegaRot*(-2/3)*(1/J2)*(1/n)*((p/Re)^2)*(pi/180)/(24*3600) i = acos(OmegaRot*(-2/3)*(1/J2)*(1/n)*((p/Re)^2)*(pi/180)/(24*3600))*(180/pi)

说明：  多步最小二乘法程序，适用与利用MATLAB进行系统辨识计算(Multi-step least squares procedure, applied to system identification using MATLAB calculation)

提取信号的小波细节系数，对原始信号进行3层分解，分别提取每一层信号的细节系数。(To extract the signal wavelet detail coefficients of the original signal is 3 layers of decomposition, respectively to extract the signal the detail coefficients of each layer)

本文介绍了matlab常用数值函数，包括通用命令、运算符和特殊运算符、编程语言结构、基本矩阵函数和操作、基本数学函数和文件输入与输出等。(This article describes the commonly used numerical matlab functions, including general orders, operators and special operators, programming language, structure, function and basic matrix operations, and basic mathematical functions such as file input and output.)

顺便附上几张仿真图 这是状态图 要注意的是：必须把系统状态和kalman滤波器内部预测的状态分开(Incidentally, several simulation map attached to this is the state diagram should be noted that: must be the system state and kalman filter to separate the state of internal forecasts)