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Fusion Algorithm-Based Temperature Compensation Method for High-G MEMS Accelerometer
Joint Authors
Shen, Chong
Liu, Jun
Cao, Huiliang
Lu, Qing
Shi, Yunbo
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In recent years, High-G MEMS accelerometers have been widely used in aviation, medicine, and other fields.
So it is extremely important to improve the accuracy and performance of High-G MEMS accelerometers.
For this purpose, we propose a fusion algorithm that combines EMD, wavelet thresholding, and temperature compensation to process measurement data from a High-G MEMS accelerometer.
In the fusion algorithm, the original accelerometer signal is first decomposed by EMD to obtain the intrinsic mode function (IMF).
Then, sample entropy (SE) is used to divide the IMF components into three segments.
The noise segment is directly omitted, wavelet thresholding is performed on the mixing segment, and a GA-BP performs temperature compensation on the drift segment.
Finally, signal reconstruction is implemented.
Later, a comparative analysis is carried out on the results from four models: EMD, wavelet thresholding, EMD + wavelet thresholding, and EMD + wavelet thresholding + temperature compensation.
The experimental data show that the acceleration random walk change from 1712.66 g/h/Hz0.5 to 79.15 g/h/Hz0.5 and the zero-deviation stability change from 49275 g/h to 774.7 g/h.
This indicates that the fusion algorithm (EMD + wavelet thresholding + temperature compensation) not only effectively suppresses the noise of high-frequency components but also compensates for temperature drift in the accelerometer.
American Psychological Association (APA)
Lu, Qing& Shen, Chong& Cao, Huiliang& Shi, Yunbo& Liu, Jun. 2019. Fusion Algorithm-Based Temperature Compensation Method for High-G MEMS Accelerometer. Shock and Vibration،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211120
Modern Language Association (MLA)
Lu, Qing…[et al.]. Fusion Algorithm-Based Temperature Compensation Method for High-G MEMS Accelerometer. Shock and Vibration No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1211120
American Medical Association (AMA)
Lu, Qing& Shen, Chong& Cao, Huiliang& Shi, Yunbo& Liu, Jun. Fusion Algorithm-Based Temperature Compensation Method for High-G MEMS Accelerometer. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211120
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211120