Resonant optical fiber gyroscope resonance frequency tracking system based on pseudo random signals

The invention belongs to resonant optical fiber gyroscope (RFOG) control technique and relates to a resonant optical fiber gyroscope resonance frequency tracking system. The resonant optical fiber gyroscope resonance frequency tracking system based on pseudo random signals comprises a pseudo random signal transmitter, a signal driving module, a delay control compensation module, a signal conditioning module, a coherent demodulation module, a PID (Proportion Integration Differentiation) compensation module, a transmission delay monitoring module and a laser emitter driving module. Demodulationsignals of the system are saw tooth wave sequences based on pseudo random signals, and the inclination rates of the sequences are M sequences generated according to a shift register. By adopting the demodulation method provided by the invention, RFOG resonant tracking control can be achieved, furthermore transmission delay introduced by optical paths and circuits can be also detected in real time,inhibition of temperature