The example shows the autocorrelation of the theoretical emitted signal for whom it is possible to fix the high and low limits of the frequency sweep, the reflectivity function of the substratum made up of 4 Diracs, the seismic trace and the seismic trace correlated with the emitted signal. The seismic trace is the convolution of the reflectivity by the emitted signal (Convolution product : application to the translation of a wavelet).

We can verify that the greater the bandwidth, the more the correlated seismic trace resembles the reflectivity.