QDemo

将小波滤波方法与VMD算法结合，提取故障信息(Wavelet and VMD algorithm are combined to extract fault information)

本源码为利用光流法提取视频关键帧的matlab程序实现，也是本文基于内容的视频检索的论文所写的代码，需要的可以参考！(The source for the use of optical flow extracted keyframe Videos matlab program implementation, but also this article content-based video retrieval dissertation written code, can refer to the required!)

本程序实现随机数的产生和在相同调制方式下功率谱比较(the program of random number generation and modulation in the same way under the power spectral comparison)

说明：  采用正交匹配追踪（OMP）算法实现信号重构(Orthogonal matching pursuit algorithm for signal reconstruction)

说明：  一个很有用的函数，功能是产生规定字长以及规定汉明重量的码字，常用于channel coding开发(A useful function, function is to have the provisions of word length and weight of the provisions of Hamming code word, commonly used in the development of channel coding)

用贝塞尔曲线画圆的代码,效率高，可以调节参数控制(draw circle by bezier )

matlab smith yuantu(matlab smith)

通过MATLAB实现含分布式电源的配电网重构，可考虑多种类型负荷模式(MATLAB realization by containing distributed power distribution network reconfiguration, we can consider various types of load mode)

数值方法解方程组AX=B（LU分解），过程分3步，首先，分解系数矩阵A=LU，然后，解LY=B，最后再求UX=Y 另一种是直接求解的（2.1）(Numerical method to solve the equations AX = B (LU decomposition), 3 step process, first of all, the decomposition of the coefficient matrix A = LU, then, Xie LY = B, and finally seek UX = Y another directly solving (2.1 ))

生成fsk调制信号，虽然简单但是希望对大家有帮助(Fsk modulated signal generation, although simple, however we would like to help)