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Proceedings Paper

The optical gyro signal de-noising based on EMD
Author(s): Yanhong Lu
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Paper Abstract

There are different kinds of noise in the optical gyro output signals. The signals imbedded noise are always non-stationary. Recent works have demonstrated that the noise can be separated from the original signal by the empirical mode decomposition (EMD). However, there are some shortages in the original algorithm of EMD, for example, the envelope mean computation and the time-consuming fitting. An improved EMD is introduced where quasi-mean filter and the extension segment approximation are proposed. The new EMD is used in ring laser gyro signal analysis and de-noising, and the Allan variance is used to evaluate the result.

Paper Details

Date Published: 13 October 2008
PDF: 7 pages
Proc. SPIE 7129, Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration, 71290M (13 October 2008); doi: 10.1117/12.807632
Show Author Affiliations
Yanhong Lu, Beihang Univ. (China)


Published in SPIE Proceedings Vol. 7129:
Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration

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