Patents Assigned to University, Peking
  • SAGNAC PHASE SHIFT TRACKING METHOD FOR FIBER-OPTIC GYROSCOPES
    Publication number: 20120239329
    Abstract: A Sagnac phase shift tracking method of fiber-optic gyroscopes comprises determining, for both a current time and a previous time, a value of a primary harmonic demodulated signal and a value of a secondary harmonic demodulated signal from a detector output in the fiber-optic gyroscope; and determining the Sagnac phase shift of the fiber-optic gyroscope for the current time based on the values of the primary harmonic demodulated signal and the secondary harmonic demodulated signal for both the current time and the previous time.
    Type: Application
    Filed: August 25, 2011
    Publication date: September 20, 2012
    Applicant: University, Peking
    Inventors: Chuanchuan Yang, Ziyu Wang