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International Journal of Aerospace Engineering
Volume 2017, Article ID 9343215, 12 pages
https://doi.org/10.1155/2017/9343215
Research Article

Deformation Measuring Methods Based on Inertial Sensors for Airborne Distributed POS

1School of Instrumentation Science and Optoelectronics Engineering, Beihang University, Beijing 100191, China
2Science and Technology on Inertial Laboratory, Beijing 100191, China
3School of Engineering and Digital Arts, University of Kent, Canterbury CT2 7NT, UK

Correspondence should be addressed to Xiaolin Gong; nc.ude.aaub@niloaixgnog

Received 25 May 2017; Accepted 2 August 2017; Published 10 September 2017

Academic Editor: Nicolas Avdelidis

Copyright © 2017 Xiaolin Gong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper is focused on deformation measuring methods based on inertial sensors, which are used to achieve high accuracy motion parameters and the spatial distribution optimization of multiple slave systems in the airborne distributed Position and Orientation System or other purposes. In practical application, the installation difficulty, cost, and accuracy of measuring equipment are the key factors that need to be considered synthetically. Motivated by these, deformation measuring methods based on gyros and accelerometers are proposed, respectively, and compared with the traditional method based on the inertial measurement unit (IMU). The mathematical models of these proposed methods are built, and the detailed derivations of them are given. Based on the Kalman filtering estimation, simulation and semiphysical simulation based on vehicle experiment show that the method based on gyros can obtain a similar estimation accuracy to the method based on IMU, and the method based on accelerometers has an advantage in -axis deformation estimation.