A Laser Gyro Strapdown Inertial Navigation

Abstract

The invention discloses a laser gyro strapdown inertial navigation system, which includes an installation frame, and the installation frame is used for fixed installation of three laser gyro and three accelerometers, and is characterized in that: the overall shape of the installation frame is rectangular Shaped structure; the rectangular body-shaped structure is concave in the middle of any three sides of the four sides in the horizontal circumferential direction and is formed with an X-direction laser gyro installation groove, a Y-direction light gyro installation groove and an accelerometer installation Groove, the accelerometer installation groove can accommodate three accelerometers and provide them for fixed installation; the middle position of any one of the top surface or bottom surface of the rectangular body-shaped structure is concavely formed with a Z-direction laser gyro installation groove. The laser gyro strapdown inertial navigation system of the present invention has the advantages of regular and simple structure, small volume, high compactness and lighter weight.

Description

technical field [0001] The invention belongs to the field of inertial navigation, and in particular relates to a laser gyro strapdown inertial navigation. Background technique [0002] Inertial Navigation System (INS, hereinafter referred to as inertial navigation system) is an autonomous navigation system that does not rely on external information and does not radiate energy to the outside. Its working environment includes not only the air, the ground, but also underwater. The basic working principle of inertial navigation is based on Newton's laws of mechanics. By measuring the acceleration of the carrier in the inertial reference system, integrating it with time, and transforming it into the navigation coordinate system, the position in the navigation coordinate system can be obtained. Information such as speed, yaw angle and position. [0003] Strap-down Inertial Navigation System (SINS for short) installs the accelerometer and gyroscope directly on the carrier, and ca...

AI Technical Summary

Problems solved by technology

[0006] But above-mentioned laser inertial navigation still has the following deficiencies: for three laser gyroscopes and three accelerometers fixing table body is special-shaped structure, the processing of this table body is very difficult and time-consuming, increases the cost of product, has affected Improvement in production efficiency

In addition, the installation slots of the three laser gyroscopes on the table body are scattered, which will inevitably increase the occupied volume and space.

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