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This code is usefull for who learn matlab for digital communication.This code is usefull for who learn matlab for digital communication.This code is usefull for who learn matlab for digital communication.This code is usefull for who learn matlab for digital communication

用MATlabgui编写的登录密码的例程，该例程可新注册密码。并对上一版改版。(Written by MATlab gui login password routine, the routine can register a new password. And on a revised version.)

说明：  逆透視轉換Matlab程式，可降透視轉為鳥瞰(Inverse Perspective convert Matlab program can be reduced to a bird)

relay oscillation method of pid tuning using matlab

simulink simulation for DFIG wind turbine

this coding use for students who use matlab steganography. the code will be highly used in recent times.

进一步采用基于距离和曲线形态的双尺度相似性度量谱聚类算法进行聚类处理，通过求n 个二次规划问题，就可以求得相似度矩阵W，降低了谱聚类算法对参数的敏感性，使算法更稳定(Furthermore, we use the two-scale similarity measure spectrum clustering algorithm based on distance and curve shape to carry out clustering. By finding n quadratic programming problems, we can obtain the similarity matrix W and reduce the sensitivity of the spectral clustering algorithm to the parameters Sex, make the algorithm more stable)

matlanb仿真实现下垂控制，能够较好的跟上无功和有功，调节电压与频率(this is a droop controler，use PI control)

STITCS FOR ENGEENEER

希尔伯特变换代码，用于求解超声波形包络线。并且有平滑处理(Hilbert transform code for solving ultrasonic envelopes. And smoothing)