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How inertial navigation works
Jan 24, 2019

The inertial navigation system is an autonomous navigation method. It relies entirely on the equipment on the carrier to autonomously determine the navigation parameters such as the heading, position, attitude and speed of the carrier without any external optical, electrical or magnetic information.
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Inertial navigation is a comprehensive technology involving various disciplines and fields such as precision machinery, computer technology, microelectronics, optics, automatic control, and materials. The basic working principle is based on Newton's laws of mechanics. By measuring the acceleration and angular acceleration of the carrier in the inertial reference frame, it integrates the time with one time to obtain the velocity and angular velocity of the motion carrier, and then performs the second integral to obtain the motion. The position information of the carrier is then transformed into a navigation coordinate system to obtain velocity, yaw angle and position information in the navigation coordinate system.

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