Seismic data processing method, seismic survey process, related system and installation

A seismic data processing method, carried out using a seismic data processing system, the seismic data being data received by at least one receiver during a relative movement of a vibratory seismic source with regards to the at least one receiver, the method comprising:

• retrieving at least one common receiver gather acquired at the at least one receiver, the common receiver gather resulting from reflections in a ground of successive sweeps emitted by the source, the successive sweeps being emitted at different offsets between the at least one receiver and the source;
• and for the at least one common receiver gather;
• transforming the at least one common receiver gather in the time-offset domain to obtain a grid in a frequency-wavenumber domain, the grid having a plurality of points;
• calculating and applying a Doppler correction filter value at each point of the grid in the frequency-wavenumber domain;
• inverse transforming the grid in the frequency-wavenumber domain to the time-offset domain to obtain at least one Doppler corrected common receiver gather;
• processing the at least one Doppler corrected common receiver gather to obtain at least a representation or/and a measurement of at least a ground feature using the at least one Doppler corrected common receiver gather;
• and
• calculating and applying a Doppler correction filter value comprising determining an instantaneous frequency function of at least one of the sweeps emitted by the source, inverting the instantaneous frequency function to obtain an inverse frequency function, and calculating the Doppler correction filter value from the inverse frequency function.