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International Journal of Intelligent Systems and Applications(IJISA)

ISSN: 2074-904X (Print), ISSN: 2074-9058 (Online)

Published By: MECS Press

IJISA Vol.7, No.11, Oct. 2015

Scalar Diagnostics of the Inertial Measurement Unit

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Author(s)

Vadim V. Avrutov

Index Terms

Fault diagnosis;inertial measurement unit;inertial navigation systems;scalar calibration;quality monitoring and diagnostics

Abstract

The scalar method of fault diagnosis systems of the inertial measurement unit (IMU) is described. All inertial navigation systems consist of such IMU. The scalar calibration method is a base of the scalar method for quality monitoring and diagnostics. Algorithms of fault diagnosis systems are developed in accordance with scalar calibration method. Algorithm verification is implemented in result of quality monitoring of IMU. A failure element determination is based in diagnostics algorithm verification and after that the reason of such failure is cleared. The process of verifications consists of comparison of the calculated estimations of biases, scale factor errors and misalignments angles of sensors to their data sheet certificate, which kept in internal memory of navigation computer. In result of such comparison the conclusion for working capacity of each one IMU sensor can be made and also the failure sensor can be deter-mined.

Cite This Paper

Vadim V. Avrutov,"Scalar Diagnostics of the Inertial Measurement Unit", IJISA, vol.7, no.11, pp.1-9, 2015. DOI: 10.5815/ijisa.2015.11.01

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