A System-Level Compensation Method for Inertial Navigation System

In order to solve the problem about the slow accumulation of error in the INS, this paper offers a system-level compensation method that makes use of characteristics of ship that two sets of ship’s INS are independent and backup for each other to convert gyro for navigation into biax-gyro. By proceeding of the output of biax-gyro, gyro’s bias was revised. This method not only reduces the size and weight of INS, but also improves the stability of system.

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