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Definition of inertial navigation

Inertial navigation system is an autonomous navigation technology developed in the middle of the 20th century. Measurement of the angular velocity and acceleration information of the carrier relative to the inertial space by the Inertial Measurement Module (IMU). The instantaneous speed and position information of the carrier are automatically calculated using Newton’s law of motion. The system is based on gyro and accelerometer as the navigation parameters of the sensor. The system establishes the navigation coordinate system based on the output of the gyro, and calculates the speed information and position information of the navigation in the coordinate system according to the time integral of the acceleration.

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