Patent ID: 7548600

Claim:
Method of data acquisition comprising the steps of: sampling acquisition data at an imperfect sampling frequency F E provided by a local clock ( 100 ), thus forming a series of sampled and dated data E[k] having a time provided by the local clock ( 100 ); measuring the frequency error of the local clock ( 100 ) by determining the sampling dates according to a universal time UTC(t) and gauging the local clock ( 100 ) to a reference clock of a satellite-based positioning system ( 200 ); and collecting the sampled and dated data E[k] and turning on the satellite-based positioning system ( 200 ) so as to perform the gauging of the local clock ( 100 ); turning off the satellite-based positioning system ( 200 ) once the gauging of the local clock ( 100 ) has been performed; keeping the satellite-based positioning system ( 200 ) in the off state for the duration of validity of the gauging of the local clock ( 100 ).