摘要
为消除陀螺零偏和陀螺常值漂移的影响,探讨二位置方案来实现高精度寻北的方法;并以二位置寻北原理为基础,给出其误差分析方法,得出在陀螺的漂移及标度因数误差、台体的水平误差、转位误差、引入参数误差等几个因素作用下的误差模型,并对误差特点进行分析。分析结果证明:在以上误差源作用下产生的寻北误差多与方位角的三角函数成比例关系,或为常值误差,该结论可为补偿寻北误差提高寻北精度提供参考。
In order to cancel the impact of gyro bias and gyro drift,discusses two-position method to achieve high north seeking accuracy.Based on two-position north seeking,an error analyzing method is given.The error models are established,which includes gyro drift,scale-factor error,level error of platform,position transformation error and introduce parameter error.Then,analyze the error features.The analysis result shows that the north seeking error is proportioned to azimuth trigonometric function or is a constant under such error sources.The result can give reference to compensate north seeking error and improve north seeking accuracy.
出处
《兵工自动化》
2012年第3期55-57,共3页
Ordnance Industry Automation
关键词
光纤陀螺仪
寻北
二位置
误差分析
fiber-optic gyroscope（FOG）
north-seeking
two-position
error analysis
