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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
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Sensors and Materials, Volume 31, Number 8(3) (2019)
Copyright(C) MYU K.K.
pp. 2595-2608
S&M1959 Research Paper
https://doi.org/10.18494/SAM.2019.2361
Published: August 30, 2019

Bidirectional Carouseling Method Based on Phase Difference for MEMS Gyro North Finder [PDF]

Xiaowen Cai, Chunxi Zhang, Shuang Gao, and Ruoyu Zhang

(Received March 7, 2019; Accepted July 16, 2019)

Keywords: MEMS gyro, north finder, bias drift, bidirectional, phase difference

The north finder has been widely used in precision guided weapons, unmanned aerial vehicles (UAVs), and other device. In this paper, a north finder based on a low-cost micro-electro-mechanical system (MEMS) gyro is proposed. In order to reduce the substantial bias effect on the gyro’s north finding angle, a bidirectional carouseling method is applied. To improve the north finding accuracy, the phase difference between the turntable rotation rate and the gyro output is used. After the calculation of the phase difference, a five-order Butterworth filter is chosen to eliminate the gyro high-frequency noise. Experimental results demonstrate that the proposed method based on the phase difference can effectively improve the north finding accuracy by 50% compared with the traditional carouseling method.

Corresponding author: Shuang Gao


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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Xiaowen Cai, Chunxi Zhang, Shuang Gao, and Ruoyu Zhang, Bidirectional Carouseling Method Based on Phase Difference for MEMS Gyro North Finder, Sens. Mater., Vol. 31, No. 8, 2019, p. 2595-2608.



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