Model identification method based on SVM for FOG;

Data acqusition of FOG s temperature with FPGA/CPLD;

Modeling technology for null drift of FOG;

In the course of FOG development,firstly open-loop fiber optic gyroscope was used in tactical and commercial application,and later it was developed into all-digital closed loop interferential fiber optic gyroscope(IFOG),and gradually applied in navigation-grade inertial system.

A novel two-ring-resonantor in parallel combined Rayleigh backscattering fiber optic gyroscope(RBFOG)is proposed based on the single ring scheme.

Design and Manufacture of Branch Optic Waveguide Phase Modulator for Fiber Optic Gyroscope;

To reduce the drift error existing in the output signal of fiber optic gyroscopes (FOG), a mathematical model of the FOG output signal is set up; the error characteristics of the FOG output signal are analyzed, and semi-soft threshold filtering is chosen based on the comparison of hard threshold and soft threshold filtering.

The closed-loop interference fiber optic gyroscopes and strapdown inertial measurement unit are introduced.

An experimental setup of circulating fiber optic gyro and its test results are presented in detail.