Method and system for adjusting seismic source pilot and drive signals using measured data

A controller for calibrating pilot and drive signals of a marine seismic source array using measured data, the controller comprising:

• an interface configured to receive a source array geometry and a model of the source array;
• and
• a processor connected to the interface and configured to,
• estimate an initial overall response of the source array based on source emission simulations using the model of the source array;
• and the source array geometry;
• generate pilot and drive signals for the source array based on the initial overall response;
• determine individual responses of source elements, which form the source array, based on the source array geometry, the model of the source array, and first measured data indicative of individual behavior of the source elements;
• calculate an actual overall response of the source array to the pilot and drive signals, using the model of the source array and second measured data indicative of a collective behavior of the source elements;
• and
• adjust the pilot and drive signals so that the actual overall response of the source array to calibrated pilot and drive signals meets a target emission objective.

A non-transitory computer-readable medium storing instructions, which when executed by a processor, implement a method for calibrating pilot and drive signals of a marine seismic source array using measured data, the instructions comprising:

• receiving a source array geometry and a model of the source array;
• estimating an initial overall response of the source array based on source emission simulations using the model of the source array and the source array geometry;
• generating pilot and drive signals for the source array based on the initial overall response;
• determining individual responses of source elements, which form the source array, based on the source array geometry, the model of the source array, and first measured data indicative of individual behavior of the source elements;
• calculating an actual overall response of the source array to the pilot and drive signals, using the model of the source array and second measured data indicative of a collective behavior of the source elements;
• and
• adjusting the pilot and drive signals so that the actual overall response of the source array to calibrated pilot and drive signals meets a target emission objective.