If you want to integrate the signals and study them in tandem, you have to synchronize them. If y1 and y2 have different lengths, then matlab appends enough zeros to the end of the shorter vector to make both vectors the same size crosscorr uses a fourier transform to compute the xcf in the frequency domain, then converts back to the time domain using an inverse fourier transform. The matrices rl and ru give lower and upper bounds, respectively, on each correlation coefficient according to a 95% confidence interval by default. Correlacion cruzada y matlab matematicas aplicadas. Este ejemplo requiere parallel computing toolbox software. Correlacion cruzada, autocorrelacion, covarianza cruzada, autocovarianza, convolucion lineal y circular. Crosscorrelation measures the similarity between a vector x and shifted lagged copies of a vector y as a function of the lag. If x and y have different lengths, the function appends zeros to the end of the shorter vector so it has the same length as the other. Sample crosscorrelation matlab crosscorr mathworks. Run the command by entering it in the matlab command window. For example, crosscorry1,y2,numlags,10,numstd,2 plots the sample xcf of y1 and y2 for 10 lags and displays confidence bounds consisting of 2 standard errors. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer this is used solely as a reading device such as nuvomedias rocket ebook.