Strapdown Inertial Attitude System Based on Ring Laser Gyro Algorithm

Authors

DOI:

https://doi.org/10.20535/1810-0546.2017.2.96257

Keywords:

Ring laser gyro, Poisson equation, Quaternion, Math modeling, Strapdown inertial attitude system

Abstract

Background. The paper is dedicated to improving the accuracy of strapdown inertial systems by improving the algorithmic software.

Objective. The aim of the paper is the development and analysis of the accuracy of a strapdown inertial orientation system algorithms.

Methods. Construction of a strapdown attitude reference system algorithms based on kinematic equation of Poisson and quaternions. The input data for the orientation algorithms are signals from the real laser gyroscopes installed in the system. Orientation equation integration is performed using the Runge–Kutta methods.

Results. The attitude system errors, depending of the different vehicle motions are determined.

Conclusions. Research of selected orientation algorithms and numerical integration showed their high accuracy. They may be used in the design of precision strapdown inertial systems.

Author Biographies

Alexander Sapegin, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Department of Orientation and Navigation Instruments and Systems, assistant

Maxim Norenko, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Department of Orientation and Navigation Instruments and Systems, student

References

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A.N. Sapegin et al., “Strapdown inertial navigation system based on dry tuned rotor gyro”, Naukovi Visti NTUU KPI, no. 6, pp. 94–100, 2016 (in Ukrainian). doi: 10.20535/1810-0546.2016.6.81064

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U.F. Lazarev and A.A. Sandiy, “Synthesis and research of accuracy strapdown inertial attitude systems based on Poisson equation”, Vestnik NTUU “KPI”. Ser. Priborostroenie, no. 51, pp. 22–29 (in Russian).

U.F. Lazarev and A.N. Sapegin, “The accuracy of numerical integration of the Poisson orientation equation by the Runge–Kutta and Picard methods”, Visnuk Ingenernoi Akademii Ukrainu, no. 3 pp. 133–139, 2015. (in Russian).

A.N. Sapegin and D.V. Bugaiov, “Software model of strapdown inertial attitude system based on inertial measurement unit МАХ21105”, Visnuk Ingenernoi Akademii Ukrainu, no. 1, pp. 119–122, 2016 (in Russian).

A.N. Sapegin et al., “The integration of the orientation algorithm using the method of Runge–Kutta”, Ukraine Certificate of authorship 65194, May 5, 2016 (in Ukrainian).

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Published

2017-04-27

Issue

No. 2 (2017): Engineering

Section

Art

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