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Proceedings Paper

Lock-in error compensation based on synchronous filtering for dithered ring laser gyro
Author(s): Zhenfang Fan; Hui Luo; Guangfeng Lu; Shaomin Hu
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Paper Abstract

The mechanical dithered ring laser gyro (MDRLG) has to go across lock-in region twice every dither cycle, thus the information loss is inevitable. According to the lock-in equation, the lock-in error can be expressed by observable signals. The lock-in error compensation of MDRLG based on synchronous filtering is demonstrated in this paper. The outputs of MDRLG and error accumulations are filtered synchronized to insure their alignment in the time domain. Experimental results show that the effect of lock-in compensation is improved.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 841903 (15 October 2012); doi: 10.1117/12.975752
Show Author Affiliations
Zhenfang Fan, National Univ. of Defense Technology (China)
Hui Luo, National Univ. of Defense Technology (China)
Guangfeng Lu, National Univ. of Defense Technology (China)
Shaomin Hu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8419:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Yadong Jiang; Junsheng Yu; Zhifeng Wang, Editor(s)

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