Research on the Digital Closed-loop Control of Fiber Optical Gyroscope

Modelling of fiber optical gyroscope digital closed-loop control is a very important work in the developing process. According to the digital closed-loop principle of fiber optical gyroscope, set up the mathematical model of closed-loop control, the first closed-loop control tache is an integral control tache. On this basis, the tracking and compensation technology is brought out , and odulation and demodulation equations were listed. At last, the effect of source intensity noise and environmental shock on the fiber optical gyrscopes output response was simulated and researched. It proved that intensity noise has influence on the system output response and the scale factor, and the power of standing against shock is different at different gains.