Patent ID: 7584069

Claim:
A method of correcting the effects of aging of a measurement sensor on board a carrier, the sensor delivering measurements the precision of which degrades with the age of the sensor, a law describing the degradation in the measurement precision as a function of the age of the sensor being known, the carrier being equipped with a processing unit for processing the sensor measurements and with a receiver of a satellite positioning system providing absolute time information with a view to reading an astronomical table in order to establish satellite positions and to deliver a measurement of the position of the receiver, characterized in that it comprises, on turning on the processing unit, the following steps: transmitting the absolute time information from the satellite positioning receiver to the processing unit; determining the age of the sensor by comparison of the date of manufacture of the sensor and the absolute time information; determining corrections to be made to a sensor measurement, based on the age of the sensor and on the degradation law; and applying the corrections to the sensor measurement.