基于标校经纬仪的测量船坞内标校新方法

A New Calibration Method Based on Calibration Theodolite for Spacecraft TT&C Ship at Dock

光轴漂移和惯性导航设备惯性元件更新维护,是船载无线电测量设备测量精度逐渐下降的主要原因。为此,提出了一种标校新方法,以标校经纬仪测量数据为基准,在甲板系中标定无线电测量设备零位和轴系误差,同时通过坐标系取齐达到消除惯导姿态测量误差的目的。分析表明,该方法完全满足无线电测量设备标校精度要求,具有简便、经济、高效等优点,是保持和提高测量船测量精度的有效途径。

The updating and maintenance of inertial sensor for inertial navigation system and the pointing drift of optical axes are main factors leading to measuring precision degradation of radio tracking system gradually.A new calibration method based on calibration theodolite＇s measure data is proposed,in which the azimuth-zero value and axes-systematic error of radio tracking system are calibrated in deck coordinate system.Moreover,the attitude determination error due to inertial navigation system is eliminated by coordinate system unification.The analysis shows that the method meets the requirement on calibration precision of radio tracking system.It has the advantage in terms of simpleness,convenience,economical efficiency,high efficiency etc.It is the effective approach for holding and improving the measuring precision of spacecraft TT＆C ship.