Digital dual ramp phase modulator for fiber optic gyroscope
A digital technique has been derived and implemented to overcome the problem of slope variations in dual ramp fiber optic gyroscopes. The circuit is designed with the help of various interfacings of analog to digital converter stage for realization of a feedback loop for performance gain. Dual ramps are digitally generated in the form of staircase ramps. The hardware developed is experimented with simulated rotation measures in the laboratory. (C) 1999 Elsevier Science Ltd. All rights reserved.
fog nrp upslope downslope serrodyne