Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering

This paper presents design and implementation of an attitude and heading reference system (AHRS) based on low-cost MEMS sensors and complementary filtering (CF). Different from traditional solutions, information fusion is performed with Euler angles directly, which is more straightforward for unders...

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Main Authors: Yangzhu Wang, Ning Li, Xi Chen, Miao Liu
Format: Article
Language:English
Published: SAGE Publishing 2014-08-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1155/2014/214726
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author Yangzhu Wang
Ning Li
Xi Chen
Miao Liu
author_facet Yangzhu Wang
Ning Li
Xi Chen
Miao Liu
author_sort Yangzhu Wang
collection DOAJ
description This paper presents design and implementation of an attitude and heading reference system (AHRS) based on low-cost MEMS sensors and complementary filtering (CF). Different from traditional solutions, information fusion is performed with Euler angles directly, which is more straightforward for understanding; however it proposes many challenges for reaching a stable and accurate estimation as when these angles approach or traverse their range boundaries, estimation may get discontinuous. Thus an effective discontinuity avoiding strategy is suggested in this paper to refine the estimation. Besides, instead of extended Kalman filtering (EKF), CF is utilized for state estimation of AHRS as it features fusion of high-frequency and low-frequency signals. In order to make up for shortcomings of MEMS sensors such as multiple errors, drifts, and bad accuracy, some effective calibration and filtering algorithms are proposed to guarantee agreeable AHRS performance. Also, architecture of the MEMS IMU (inertial measurement unit) and mathematical principles for AHRS solution are explained and implemented in this paper. Meanwhile, experimental comparisons have proved feasibility and acceptable performance of this AHRS design.
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spelling doaj.art-69cd48c25f074e249c0252dfd46281bb2022-12-21T19:42:22ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322014-08-01610.1155/2014/21472610.1155_2014/214726Design and Implementation of an AHRS Based on MEMS Sensors and Complementary FilteringYangzhu Wang0Ning Li1Xi Chen2Miao Liu3 School of Automation Science & Electrical Engineering, Beihang University, Beijing 100191, China Mechanical, Aerospace and Biomedical Engineering Department, University of Tennessee, Knoxville, TN 37996, USA COMAC Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 200436, China Shanghai Institute of Microsystem and Information Technology, Shanghai 200050, ChinaThis paper presents design and implementation of an attitude and heading reference system (AHRS) based on low-cost MEMS sensors and complementary filtering (CF). Different from traditional solutions, information fusion is performed with Euler angles directly, which is more straightforward for understanding; however it proposes many challenges for reaching a stable and accurate estimation as when these angles approach or traverse their range boundaries, estimation may get discontinuous. Thus an effective discontinuity avoiding strategy is suggested in this paper to refine the estimation. Besides, instead of extended Kalman filtering (EKF), CF is utilized for state estimation of AHRS as it features fusion of high-frequency and low-frequency signals. In order to make up for shortcomings of MEMS sensors such as multiple errors, drifts, and bad accuracy, some effective calibration and filtering algorithms are proposed to guarantee agreeable AHRS performance. Also, architecture of the MEMS IMU (inertial measurement unit) and mathematical principles for AHRS solution are explained and implemented in this paper. Meanwhile, experimental comparisons have proved feasibility and acceptable performance of this AHRS design.https://doi.org/10.1155/2014/214726
spellingShingle Yangzhu Wang
Ning Li
Xi Chen
Miao Liu
Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
Advances in Mechanical Engineering
title Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
title_full Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
title_fullStr Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
title_full_unstemmed Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
title_short Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
title_sort design and implementation of an ahrs based on mems sensors and complementary filtering
url https://doi.org/10.1155/2014/214726
work_keys_str_mv AT yangzhuwang designandimplementationofanahrsbasedonmemssensorsandcomplementaryfiltering
AT ningli designandimplementationofanahrsbasedonmemssensorsandcomplementaryfiltering
AT xichen designandimplementationofanahrsbasedonmemssensorsandcomplementaryfiltering
AT miaoliu designandimplementationofanahrsbasedonmemssensorsandcomplementaryfiltering