Method for seismic acquisition on the seabed, guiding equipment, seismic acquisition equipment and seismic acquisition system for the implementation of this method

A seismic acquisition unit for acquiring seismic data at a seabed, the seismic acquisition unit comprising:

• a seismic acquisition device configured to record and store seismic waves,
• wherein the seismic acquisition device includes a seismic sensor that couples to the seabed and records the seismic waves;
• a guiding equipment configured to guide the seismic acquisition device to an acquisition position at the seabed, wherein the guiding equipment comprises,
• a reception unit configured to receive acoustic signals from a plurality of sources, the reception unit also being configured to generate command signals in response to the received acoustic signals;
• and
• an autonomous guiding unit configured to receive the acoustic signals from the reception unit and to control a trajectory of the seismic acquisition unit to the acquisition position on the seabed according to the received signals, wherein said control of the trajectory is performed in the seismic acquisition unit independent of input from a mother vessel,
• wherein the seismic acquisition device brings back to the surface the seismic sensor when instructed.