基准站偏差对GPS静态相对定位影响的研究

Study on Influence of Reference Station Coordinates Deviation in Static Relative Positioning of GPS

GPS静态精密定位试验中，由于某些原因导致GPS基准站天线抖动，给测量结果引进了系统误差。依据伪距差分定位原理，推导出了基准站坐标偏差对GPS静态相对定位结果影响的数学公式。通过实测数据分析，得出了基准站站址偏差对差分GPS数据精度的影响程度及规律，与推导出的公式完全一致。

In GPS static relative position test, system error in measurement data is brought by the wobbling of antenna with some cause of reference station. Based on difference pseudo range position principle, a GPS static relative positioning result formula is deduced, for reference station coordinate deviation. The conclusion is drawn that impact degree and law of reference station coordinates deviation in static relative position of GPS surveying data, and it entirely accords with the worked out formula.