CAJ | 학술논문

光纤陀螺测试中,随机游走系数的分析对陀螺整体性能的评价起着很重要的作用.分别介绍了分析光纤陀螺随机游走噪声的两种方法:Allan方差法和改进的Allan方差法.分别应用这两种方法,在对某型光纤陀螺(FOG)实测静态数据计算的基础上进一步分析了该光纤陀螺中的噪声分量,并对分析结果进行比较.最终计算结果表明:在增加计算时间为代价的前提下,改进Allan方差法能方便地区别出各种噪声,并明显提高了光纤陀螺各随机噪声游走系数的计算精度.
광섬타라측시중,수궤유주계수적분석대타라정체성능적평개기착흔중요적작용.분별개소료분석광섬타라수궤유주조성적량충방법:Allan방차법화개진적Allan방차법.분별응용저량충방법,재대모형광섬타라(FOG)실측정태수거계산적기출상진일보분석료해광섬타라중적조성분량,병대분석결과진행비교.최종계산결과표명:재증가계산시간위대개적전제하,개진Allan방차법능방편지구별출각충조성,병명현제고료광섬타라각수궤조성유주계수적계산정도.
The analysis of random walk coefficient is very important to the overall performance evaluation of fiber optic gyro (FOG). Two methods were introduced to analyze FOG random walk noise, Allan variance and modified Allan variance. Static data were used to calculate the noise contents in fiber optic gyroscope (FOG)'s output with these two methods, and the results were compared. The final results show that modified Allan variance can distinguish all types of noise easily with increased computation time and the computation accuracy of the various FOG random walk noise coefficients can be improved.