Presentation of the structure of an Inertial Measurement Unit  to evaluate the rotation without using gyros

Shafiei, Mohammad Hosein; Jowkar, Meisam; Safarinejad, Behrooz

doi:10.30699/jsst.2020.1170

Document Type : Research Paper

Authors

Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz.Iran

https://doi.org/10.30699/jsst.2020.1170

Abstract

In this paper a new structure for the inertia measurement unit is presented; the proposed structure consists of three rotary discs around the three main axes in the body, and an accelerometer is mounted on each disc. It is shown in this paper that the proposed structure reduces the effect of disturbing accelerometer parameters, such as constant and variable bias, as well as noise depletion. Due to the proposed rotational structure, it is necessary to continuously sample the accelerometers. In order to use the sampled data, calculations should be performed in discrete mode. In this paper, a method for combining this information is presented. By examining the proposed equations, the successful performance of this method is shown in the reduction of the effect of three constant bias parameters and the bias of the accelerometer and the measured noise. As well as the efficiency of the proposed method for measuring the acceleration of the device using Numerical representation is shown.

Keywords

20.1001.1.20084560.1399.13.3.7.1

Main Subjects

GPS and navigation GPS)، GLONASS، GALILEO

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Presentation of the structure of an Inertial Measurement Unit to evaluate the rotation without using gyros

References

References

Volume 13, Issue 3 - Serial Number 44September 2020Pages 69-77

Volume 13, Issue 3 - Serial Number 44
September 2020
Pages 69-77