Matlab-code

一个数字PID控制的matlab的m文件，希望能够与各位控制领域的朋友多多交流，以求共同进步！(A digital PID control matlab m-files, hoping to control the field with my friends a lot of exchanges, in order to make progress together!)

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

说明：  利用MATLAB编写的直流电动机机械特性测试(MATLAB prepared using DC motor mechanical properties testing)

精通MATLAB 张志涌编著（Matlab入门经典教程），适用于初学者。(Proficient in MATLAB (Matlab Getting Started classic), suitable for beginners.)

说明：  经典无网格教程的随书算法的例程，属于第三章例程(Classical meshless algorithm tutorial routines with books, belonging to the third chapter routines)

its a nice toolbox for compressive sensing

可以进行简单的人脸识别，程序简单适合初学者！！(It is a very simple matlab program of face detection.)

潮流程序。。好好利用，可以更改，可以通用(power flow )

一个简单的滑膜控制实例，通过对典型惯性系统的仿真，进一步深化对滑膜控制抖震的了解，经个人验证，程序可用，且仿真效果良好。(A simple synovial control instance, the typical inertial system simulation, further deepen the understanding of the synovial control buffeting by personal verification procedures are available, and the simulation results are good.)

一束5W 的线偏振光以Φ = 45 度方位角振动，垂直入射到玻璃 - 空气表面，该光束波长0.6μm，玻璃介质折射率1.54 @0.6m，当入射角θ从0-70 度变化时，通过给定条件，分别完成如下要求： 画出该光束反射光的光强曲线（I-θ）； 分析该反射光束的偏振态变化，画出偏振方向变化曲线（φ-θ）和偏振光束相位变化曲线 （Φ-θ）。 （注：光束从光密到光疏的界面，在入射角θ 从0-70 度变化中，包括了临界角θc）(Bunch of linearly polarized light 5W to Φ = 45 degrees azimuth vibration, normal incidence to the glass- air surface, the beam wavelength 0.6μm, glass refractive index 1.54 @ 0.6m, when the incident angle θ changes from 0-70 degrees By the given conditions, namely the completion of the following requirements: Draw the reflected light beam intensity curve (I-θ) analysis of changes in the polarization state of the reflected beam, draw the polarization direction of the curve (φ-θ) and polarized beam phase curve (Φ-θ). (Note: the light beam from the optical density of the interface is sparse, the incident angle θ  variation from 0-70, including the critical angle θc))