The reasons of five error sources including vertical axis, horizontal axis, sight line coder, TV undershooting value which can result in TV tracking system errors are analyzed.
分析了电视跟踪系统的垂直轴、水平轴、视轴、编码器、电视脱靶量五个误差源产生误差的原因，探讨了误差的取舍方法及相应的计算公式。
Static error mostly includes shafting error, coder error, time-lag error by TV sensor, measure distortion by optics structure and atmosphere refraction error etc.
静态误差主要有轴系误差、编码器误差、电视传感器本身存在的时间滞后误差、光学结构中可测量的失真以及大气折射误差等；
Static error mostly includes shafting error, coder error, time-lag error by TV sensor, measure distortion by optics structure and atmosphere refraction error etc.
静态误差主要有轴系误差、编码器误差、电视传感器本身存在的时间滞后误差、光学结构中可测量的失真以及大气折射误差等；
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