航天测量船角度系统误差偏大问题的分析与解决

Analysis of and Solution to Relatively Large Azimuth System Error Problem in a Task by Space TT&C Ship

在测量船某型号任务的数据处理过程中,通过比对两套外测设备的原始测量数据,发现方位角的系统误差偏大。针对设备严重超出精度指标的问题,通过进一步的试算,利用箭载GPS数据进行比对,仔细分析了引起方位角系统误差偏大的各种因素,逐步排查后找出了问题原因,并由船载设备进行修正。通过排查分析,验证了船载设备零值修正处理方法的正确性,为船载系统类似问题的解决积累了经验。

In data processing of a task by space TT＆C ship, it is found out that the azimuth error is relatively large through comparing the data of two measurement equipment. By calculating and comparing the data of rocket - borne GPS, possible factors causing the large azimuth error are analysed and the reason is found. The error is corrected by equipment onboard ship. The zero - value correction method proposed is validated through investigation and analysis, which provides reference for such problems.