数字闭环光纤陀螺频率特性的计算和测试方法  

Method of Testing and Calculating for Frequency Characteristics of Digital Closed-Loop FOG

作　　者：马迎建[1] 王峥[1] 张惟叙[1] 王妍[1] 

机构地区：[1]北京航空航天大学宇航学院

出　　处：《北京航空航天大学学报》2002年第6期640-642,共3页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：建立数字闭环光纤陀螺FOG(fiber opticsgyroscopes)的数学模型 ,得到描写模型的差分方程 ,推导出与之对应的微分方程和传递函数 .分析传递函数与FOG模型的误差 ,得出数字闭环FOG频率特性的计算方法 .研究在普通速率转台测试数字闭环FOG频率特性的方法 .并将测试数据与计算数据加以比较验证 .计算和测试的结果证明了该计算的测试方法是准确和有效的 .A mathematical model for digital closed-loop FOG (fiber-optics gyroscropes) was established to get the difference equation of the model. Then differential equation and transfer function corresponding to the model were deduced. Frequency characteristics calculation of the digital closed-loop FOG was conducted, based on error analysis between the transfer function and the model. A method for testing frequency characteristics of the digital closed-loop FOG on common speed platform was given. The validity and veracity of the method were verified by comparing the test results and the calculation data.

关 键 词：数字闭环光纤陀螺 频率 计算 测试 飞行器 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]