Walshmatlab

一种精确测量间谐波的方法，可以准确检测电力系统的信号(An accurate method of measuring inter-harmonics, power system can accurately detect the signal)

说明：  wiener filtering, improving speech, speech recognition

直线阵进场聚焦波束形成算法，三维作图，伪彩图作图(Linear array approach focused beamforming algorithm, three-dimensional mapping, pseudo-color mapping)

压缩感知可以用远低于奈奎斯特速率对信号进行采样，然后用重构算法对测量的信号进行重构，这程序就是CS的重构算法。(Compressed sensing can be used far less than the Nyquist sampling rate of the signal, and then use the measurement signal reconstruction algorithm to reconstruct this program is CS reconstruction algorithms.)

假定半波长间隔均匀分布线列布阵的阵元数N=16，若入射平面波为f=62.5Hz的正弦信号，信号持续时间为0.4s， 系统采样频率 =1 KHz,阵列加权为均匀加权，分别给出 a)当平面波信号分别从 0,10,20,30,40,50,60,70,80,90,100度方向入射时，指向90度的波束形成器的输出序列； b)当平面波信号分别从0:1:180度方向入射时，指向90度的波束形成器的输出序列经过平方求和后的分贝数输出（把所有181个输出绘制在同一幅图中)(Assuming N=16, f=62.5, fs=1KHz, uniform weight, and the code gives: a) 90 degree response when incidence angles are: 0: 10: 100 degrees b) 90 degree spectral response when incidence angles are: 0:1:180 degrees )

本仿真采用dq原理检测谐波,采用PI闭环控制策略(This simulation uses DQ principle to detect harmonic, and adopts PI closed-loop control strategy)

主要有以下文件 MATLAB程序设计 介绍MATLAB概述与运算基础 matlab讲义 文件操作 绘图功能(mainly in the following documents MATLAB procedures outlined MATLAB Design and Operational basis matl ab overhead graphics file manipulation functions)

It includes matlab source codes of Image Processing basics and beyond the basics such as filtering smoothing sharpening Image recognition etc..

matlab电机仿真50例，电机仿真必备教材，你值得拥有。(matlab simulation of 50 cases of motor, motor simulation necessary materials, you deserve to have.)

小波去噪程序，根据信号的频域特征对信号进行小波分解，然后去噪(program for artifact removal, this function is obtained based on the frequency feature of signal.)