matlab-SVPWM-suanfa

function Px=overlay(N,omega,A,sigma,num) OVERLAY Forms multiple power spectral density estimates. ------- USAGE Px=overlay(N,omega,A,sigma,num) Calculates the periodogram using an ensemble of realizations of a process consisting of a sum of complex exponential in white noise. N : length of the signal omega : vector containing the sinusoid frequencies A : vector containing the sinusoid frequencies sigma : the variance of the white noise num : size of the ensemble (number of periodograms)

熵（近似熵，样本熵）,适合初学者。值得一看。。。。。(Entropy (entropy of approximate entropy, sample), suitable for beginners. Worth a look... )

Content based Image retrieval

能量检测，根据以URKOWITZ 在1967年发表的能量检测文章以及Digham 2003、Ghasemi 2007发表的一系列文章为参考， 在AWGN信道中，给定SNR下，先产生一个原始信号（单音或者BPSK基带信号），然后叠加高斯噪声， 再进行能量检测(Energy detection, according to URKOWITZ the energy released in the 1967 test articles, and Digham 2003, Ghasemi 2007 series of articles published as a reference, in the AWGN channel, for a given SNR, the first generating an original signal (mono or BPSK baseband signal), and then superimposed Gaussian noise, then the energy detection)

说明：  图像滤波，高斯，均值，中值，滤波源代码 Image Filtering/dftfilt.m, Image Filtering/directinv.m, Image Filtering/gaussianLR.m, Image Filtering/medianfilt.m, Image Filtering/rgblaplacian.m, Image Filtering/rgbspatial.m, Image Filtering/spatial.m, Image Filtering/wiener.m (Image filtering, Gaussian, mean, median)

Fourier descriptor

绘制一个位于坐标轴中的目标按钮，通过改变滑动条来移动目标按钮的位置，并同时显示它的坐标。(Draw a destination button located in the axis, and by changing the slider to move the position of the target button and its coordinates are displayed simultaneously.)

约翰 列侬的轻音乐代码 真的很好听的哦 感受一下matlab的强大功能(John Lennon Easy Listening code really good to hear feel matlab powerful)

说明：  这是国外一本经典教材附带的程序，通信系统的matlab实现，所含例子丰富(This is a classic foreign materials attached to the procedures, communications systems to achieve matlab contains abundant examples of)

利用matlab开发的机床直线和圆弧插补程序，可以进行四个象限的优劣圆弧，顺逆圆弧插补，同时可使用逐点比较法和数字积分法两种方法插补，软件界面简单明了、清楚，易操作。(The use of MATLAB development of machine tool of linear and circular interpolation procedures, can be carried out in four quadrants of the pros and cons of circular, clockwise arc interpolation, at the same time using point by point comparison method and digital integration method of two kinds of interpolation, the software interface is simple, clear, easy to operate.)