Installation orientation adjustment method of aircraft inertial navigation device based on gyro north finder

Abstract

The invention discloses a method for adjusting the installation orientation of an aircraft inertial navigation device based on a gyro north finder. The invention can effectively realize the adjustment of the installation orientation of the inertial guide on the aircraft, and has the advantages of simple and convenient use, good reliability, high adjustment accuracy and good universality. The present invention utilizes the designed adjustment device to adjust the installation orientation of the aircraft inertial navigation system. The adjustment device includes a frame and an optical axis intercepting device and an adjustment platform installed on the frame, wherein the adjustment platform is connected by The flat plate is composed of a sight, a vertical collimator, a north finder and a spirit level installed on the connecting plate; the present invention measures the vertical axis direction of the aircraft by adopting a measurement method combining optics and inertia, and adopts the mechanical function of the inertial navigation itself. The interface is connected to the installation environment of the inertial navigation system itself, and the direct measurement and adjustment of the inertial navigation installation interface can achieve high adjustment accuracy, and the operation is simple, which can greatly improve the adjustment efficiency.

Description

technical field [0001] The invention relates to the technical field of inertial measurement, in particular to a method for adjusting the installation orientation of an aircraft inertial navigation device based on a gyro north finder. Background technique [0002] The inertial navigation device (inertial navigation system for short) is installed on the aircraft. Due to long-term body deformation or other reasons, the installation orientation of the inertial navigation system drifts, which affects the flight accuracy and target hitting accuracy of the aircraft. Therefore, regular orientation adjustments are required. The so-called azimuth adjustment is to adjust the inertial navigation azimuth and the aircraft azimuth (the direction of the longitudinal axis of the aircraft) to be consistent. The traditional azimuth adjustment method is the technical solution of using an L-shaped hanging plate (that is, a hard connection bracket). The disadvantages are that the hanging plate is...

AI Technical Summary

Problems solved by technology

The traditional azimuth adjustment method is to adopt the technical solution of L-shaped hanging plate (that is, the hard connection bracket). The disadvantage is that the hanging plate is easy to deform and heavy, inconvenient to operate, and difficult to guarantee the adjustment accuracy.

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