给出了一种基于陀螺和四元数的EKF卫星姿态确定算法，非常实用-is based on a gyroscope and quaternion the EKF satellite attitude determination algorithm, a very practical

哈工大的陀螺仪原理，讲述了微机械陀螺仪，挠性陀螺，激光陀螺等！-HIT gyroscope principle described micromachined gyroscope, flexible gyro and laser gyro and so on!

Ring resonator is one performance of fiber optics to be used sensor, or optical filter, and in this publication i am applied on RFOG ( ring fiber optics gyroscope )