Chinese Optics Letters, 2003, 1 (10): 10567, Published Online: Jun. 6, 2006
Low cost, practical, all-digital open-loop fiber-optic gyroscope 
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Abstract
A novel all-digital scheme for open-loop fiber-optic gyroscope (FOG), where only two key points of output wave were digitized directly, has been proposed. A control equation, with which the modulation depth of PZT modulator is stable when setting the modulation depth as 4.35 and a calculation equation, with which the Sagnac phase can be worked out, are derived. A modulation depth control and an automatic correlation sampling and a gain control technology were induced. A photo-type FOG was made and tested. The good performance was achieved.
Yuanhong Yang, Weixu Zhang, Jing Ma, Xinjun Chen. Low cost, practical, all-digital open-loop fiber-optic gyroscope[J]. Chinese Optics Letters, 2003, 1(10): 10567.
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