CAJ | 학술논문

为了研究在地面环境下模拟分析空间用光纤陀螺输出特性,对光纤陀螺静态高速输出连续相同数据的特性展开了研究.通过对光纤陀螺系统建模,研究了前向增益与两种陀螺输出滤波器的特性.提出了一种计算光纤陀螺静态条件下输出连续相同数据概率的方法.通过理论计算、仿真、实验相结合的研究方法,相互验证了其正确性,发现陀螺输出连续五次相同的概率的量级为10-11,发生的概率极小,为空间应用光纤陀螺系统时钟故障诊断提供了参考.通过研究发现陀螺前向增益越小,越容易导致陀螺输出连续相同的数据;陀螺滤波器对陀螺输出连续相同数据的固有特性有重要的影响;平滑滤波器较FIR滤波器更容易导致输出连续相同的数据.
위료연구재지면배경하모의분석공간용광섬타라수출특성,대광섬타라정태고속수출련속상동수거적특성전개료연구.통과대광섬타라계통건모,연구료전향증익여량충타라수출려파기적특성.제출료일충계산광섬타라정태조건하수출련속상동수거개솔적방법.통과이론계산、방진、실험상결합적연구방법,상호험증료기정학성,발현타라수출련속오차상동적개솔적량급위10-11,발생적개솔겁소,위공간응용광섬타라계통시종고장진단제공료삼고.통과연구발현타라전향증익월소,월용역도치타라수출련속상동적수거;타라려파기대타라수출련속상동수거적고유특성유중요적영향;평활려파기교FIR려파기경용역도치수출련속상동적수거.
In order to study the fiber optic gyroscope (FOG) output characteristics in space, the characteristic of consecutive equal of FOG static high-speed outputs was reseached. With the model of FOG system, the forward gain and two types of filters were studied. A method for calculating the probability of consecutive equal of the FOG output was proposed, and its correctnee were mutually verified by theoretical calculation, simulation and experimental research. It was found that the probability with five consecutive-equal FOG outputs were at order of 10-11, which is small enough to be used as a reference for clock failure diagnosis of fiber optic gyroscope system in space applications. The studies show that the smaller the FOG forward gain, the more easily the FOG outputs have consecutive equal data. The FOG filter has important influences on the inherent characteristics of FOG output with continuous equal data. Smooth filters are more likely to lead to the output with continuous equal data than FIR filters.