The thermal characteristic of fiber optic gyro(FOG) is one of difficult questions, it is a efficient method to improve the thermal characteristic of FOG by modeling. The characteristic of thermal affect induced nonreciprocity of optic loop was introduced , and it is one of the main reasons that affect the steability of Bias and scale factor of FOG. The thermal affect produced by the inner instruments of FOG is the main reason of warm-up time. And the warm-up time can be shortened by modeling and compensating. The influence of surrounding temperature for FOG is random. The error can be modeled and compensated by temperature model. The error model of temperature drift and scale factor of FOG is settled. The raw data of FOG is compensated with the model and the validity of the model is tested.
Zhang Shiwen,Cheung Chuikuan. Modeling error propagation in vector-based overlay analysis[J].Journal of Photogrammetry and Remote Sensing.2004,59(2):47-59
Bowser M, Hammond J, Perlmutter M,et al. Broad fiber optic gyroscopes for a broad range of applications In Proceedings of the Position, Location and Navigation Symposium. Atlanta:IEEE, 2004:553-558
�ӷ�ƽ,��ˮ��.���������¶Ȳ�����ʵ���о�[J].��窩��·������, 1999,10(1):28-32 Yan Fengping,Jian Shuisheng. Study on fiber optic gyro temperature compensation[J]. Photoelectron·Laser,1999,10(1):28-32(in Chinese)
Tuckness M, Dan G. Analysis of optical navigation error during mass enery applied mathematics and computation [J]. Journal of Photogrammetry and Remote Sensing,2004, 80(1):1-22
Ruffin P B, Smith R H. Fiber windng approaches for environmentally robust IFOG sensor coils,components for fiber optic applications Transactions on Aerospace and Electronic Systems. San Diego:IEEE,1992:179-189
Sawyer J, Ruffin P B, Sung C C. Investigation of the effiects of temporal thermal gradients in fiber optic gyroscope sensing coils[J]. Journal of Photogrammetry and Remote Sensing, 1997,36(1):29-34
Wanser K H. Fundamental phase noise limit in optical fibers due to temperature fluctuations[J]. Journal of Photogrammetry and Remote Sensing, 1992,28(1):53-54