Modulation scheme of the optical phase of an MIOC of an interferometric optical fibre gyroscope.

摘要

This invention relates the inertial navigation and position systems sector, and specifically relates an optical phase modulation scheme for an interferometric fiber optic gyroscope (I-FOG), with closed-loop feedback control equipped with a digital mod/demod approach by allowing said modulation scheme to double the feedback processing speed and obtain a more accurate and linear dynamic response of the sensor when measuring rotation rate profiles characterized by high variations.