基于光纤陀螺的即插即用式全站仪定向方法  

Plug-and-play orientation method of TS based on FOG

作　　者：于先文[1] 薛红琳[2] 

机构地区：[1]东南大学交通学院,南京210096 [2]江苏省土地勘测规划院,南京210024

出　　处：《仪器仪表学报》2011年第6期1409-1413,共5页Chinese Journal of Scientific Instrument

基　　金：江苏省测绘科研项目(JSCHKY201001)资助

摘　　要：针对全站仪视准轴与光纤陀螺轴间存在集成误差角和光纤陀螺零偏问题,提出了一种即插即用且系统误差自动抵偿的光纤陀螺/全站仪组合定向方法。在工作现场,光纤陀螺通过锁紧装置连接到全站仪望远镜上,利用全站仪望远镜可分别在竖直和水平方向精确转动的特点,带动光纤陀螺到东向、西向、东向抵偿位置、西向抵偿4个位置做静态观测。这4组观测值代入一个简单公式即可计算出全站仪视准轴方位角。该方法的锁紧装置简单,集成精度要求低,光纤陀螺零偏和集成误差对方位角的影响基本被消除。仿真表明,在不利情况下,定向系统误差可控制在1″以内。Aiming at the influence of the bias of FOG and the integration error between TS and FOG on azimuth angle,a plug-and-play method for accurately orienting total station（TS） based on fiber optic gyro（FOG） is proposed.The FOG is fixed on the telescope of the TS with a locking device in actual surveying locale,and the FOG makes 4 static surveys in the east position,the west position,the east compensatory position and the west compensatory position,respectively.With the observation data,the azimuth angle of TS collimation axis can be inferred through a brief formula.Our new method has the following advantages that the locking device is simple and the requirement of integration precision is low;and the influence of the bias of FOG and the integration error between TS and FOG on the azimuth angle has been effectively suppressed.Numerical simulation shows that even in unfavorable cases the system orientation error is expected to be within 1″.

关 键 词：光纤陀螺 全站仪定向 集成误差 即插即用 

分 类 号：P24[天文地球—测绘科学与技术]