摘要
采用双频观测值建立穿刺点上的VTEC模型,说明了Tgd因素的影响,用实际数据分析了其影响。
The influence of Tgd factor is illuminated through the theory of establishing the VTEC model above pierce point by dual-frequency observation, its magnitude using practical datas is analyzed. The result shows that some influences are so large to be ignored in establishing model.
出处
《测绘信息与工程》
2008年第6期3-5,共3页
Journal of Geomatics