摘要
分析了开环光纤陀螺(O-FOG)的温度和非线性特性,以时间、温度和输入角速率为参量得到O-FOG的温度和标度因数非线性误差的混合模型,并设计了一种能够同时辨识这些参数的实验方法和数据处理方法,通过大量温度速率实验,辨识出O-FOG的温度和非线性混合模型,利用该模型对陀螺进行补偿验证,结果表明,补偿后的O-FOG克服了温度和非线性对其测量精度的影响,使它在全温度和全速率下的测量精度得到了极大提高,证明了该方法的可行性。
How the temperature and nonlinearity affect Open-loop Fiber Optic Gyro＇s （O-FOG） measure precision was analyzed, and a novel model was researched to compensate errors caused by temperature and scale factor＇s nonlinearity. The model is nonlinear function related with three factors： operate time, temperature and input angular rate. An experiment and data processing method was designed that could identify these parameters simultaneously. A great deal of testing was carried, and the results show that the compensated O-FOG＇s output at full temperatures and full rotate rates has better performance than its original output. The novel model can resolve the problem that the temperature and nonlinearity affect the O-FOG＇s performance and the results indicate that the method is useful and feasible.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第9期1922-1924,共3页
Journal of System Simulation
