Galileo/GPS组合观测值在RTK定位中的应用研究

Application Study of Galileo/GPS Integrated Measurement in RTK Positioning

随着Galileo系统的建成和GPS的现代化,RTK将会得到大大的改善。本文主要阐述了RTK的原理、主要的误差源和存在的局限性,主要研究了GPS的L2载波和Galileo系统的4个频率的载波之间的双差组合,并得出了几组有效组合,即波长较大的组合,以加快利用RTK定位时的模糊度的固定速度,从而提高RTK的定位质量。

Along with the construction of Galileo system and the development of GPS, the RTK will be greatly improved. This paper describes RTK＇s principle, main error sources and existed shortcomings. The double difference combinations between GPS＇ L2 carrier and 4 frequency carriers of Galileo have been studied. Some good combinations which take longer wavelength have been achieved for quickening the fixed rate of the ambiguities with RTK and improving the positioning accuracy.