In the time – distance representation, we show both the seismic section and its horizontal stack after different processing procedures. Its procedure includes both an estimation of the source signal and a filtering: deconvolution or correlation.

We successively show:

• The initial data;
• The result of the deconvolution of initial data using as a source signal the stack of initial data;
• The result of the correlation of initial data by the stack of initial data;
• The result of the correlation of initial data by a model signal which corresponds to a sweep in frequency of constant amplitude;
• The result of the whitening of the correlated section by the model signal.