The three-axis fiber optic gyroscope is used to sense the angular motion of the carrier, and output a digital signal proportional to the angular velocity of the carrier. The linear acceleration of the three orthogonally arranged quartz flexible accelerometers is proportional to the current signal and current signal. The I/F conversion circuit converts the frequency signal into a navigation computer. The navigation computer completes the gyroscope, the accelerometer, the external GPS data receiving, the system error compensation calculation, the navigation solution, and transmits the real-time navigation information such as speed, position and posture through the monitoring port at a predetermined period.
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