Browse > Article
http://dx.doi.org/10.5139/JKSAS.2006.34.9.097

Design and Performance Evaluation of Fiber Optic Gyro with Digital Closed-loop Processing  

도재철 (국방과학연구소)
정경호 (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.34, no.9, 2006 , pp. 97-103 More about this Journal
Abstract
This paper described the design and performance evaluation of fiber optic gyro using digital closed-loop processing. For the feedback to null the gyro input rate, digital serrodyne modulation was employed, and for scale factor stabilization, the control circuits of modulation amplitude and optical power are implemented. Performance tests show that prototype fiber optic gyro has bias stability of 0.34 deg/hr, scale factor non-lineality of about 100ppm, and maximum measurement range of ${\pm}500$ deg/sec.
Keywords
Fiber Optic Gyro; Scale Factor Stability; Digital Serrodyne Modulation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 도재철 외, '폐루프 광섬유자이로용 4-state 디지털 세로다인 로직 설계', pp. 259-261, 제 13회 광전자 및 광통신학회, 2006. 5
2 정경호 외, '폐루프 광섬유자이로의 디지털 세로다인 신호처리기 모델링 시율레이션' 한국군사과학기술학회, pp. 355-358, 2004. 8
3 H. C. Lefevre, 'Fiber Optic Gyroscope', Artech House, 1993
4 H. C. Lefevre, 'Fundamentals of the Interferometric Fiber-Optic Gyroscope', SPIE Vol. 2837, 1996
5 George A. Pavlath, 'Challenges in the Development of the IFOG', AIAA Guidance, Navigation, and Control Conference and Exhibit 11-14 August 2003
6 George A. Pavlath, 'Closed-loop fiber optic gyros', SPIE Vol. 2837, 1996
7 J.Blake and B. Szafraniec, 'Random Noise in PM and Depolarized Fiber Gyros', Technical Paper OWB2, 12th International Conference on Optical Fiber Sensors, 1997
8 H. C. Lefevre et al., 'High dynamic range fiber gyro with all-digital signal processing', SPIE Vol. 1367, 1990