A proposal of AHRS yaw angle correction with the use of roll angle
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 11 April 2023
Issue publication date: 1 September 2023
Abstract
Purpose
Attitude and heading are very important measurements on board aircraft. In modern solutions they are measured by the attitude and heading reference system (AHRS). In some small unmanned systems, the GPS track angle is used for heading corrections instead of the magnetometer; then, the system measures the track angle instead of heading. With a temporary lack of correction signals, the measurement error increases very quickly. Similarly, a quick increase in the measurement error is observed when a magnetic heading sensor used for correction stops working properly. This study aims to propose measurement of the roll angle for yaw angle correction.
Design/methodology/approach
AHRS algorithms were designed; typical maneuvers were analyzed. The method was verified by simulation and in flight testing analysis. For quantitative analyses, a performance index was proposed.
Findings
The method enables reduction of the yaw angle error caused by the gyros bias error. This study presents the idea, results of simulations and flight testing data analysis and discusses advantages and limitations of the presented method.
Practical implications
The presented methodology can be implemented in AHRS systems for manned and unmanned aircraft.
Originality/value
This study enables more accurate measurement of the yaw angle in the case of missing correction signals.
Keywords
Citation
Kopecki, G. and Banicki, M. (2023), "A proposal of AHRS yaw angle correction with the use of roll angle", Aircraft Engineering and Aerospace Technology, Vol. 95 No. 9, pp. 1435-1443. https://doi.org/10.1108/AEAT-10-2022-0274
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited