Accuracy Analysis of Galileo Triple-frequency Precise Point Positioning
Based on the multi-day data of multiple IGS tracking stations, the static and dynamic precise point positioning accuracy of Galileo system E1E5aE5b, E1E5E5b, E1E6E5b under three kinds of weight determination methods, namely equal weight, height an-gle, and signal-to-noise ratio, are analyzed by using the triple-frequency ionospheric free pairwise combination model. The experi-mental results show that the number and spatial geometric distribution of Galileo satellites broadcasting E1, E5, E5a, E5b, E6 signals are better, the static precise point positioning accuracy is at the cm level, while the dynamic precise point positioning accuracy of E1E5aE5b at in the cm level, and the elevation accuracy is at the dm level. The positioning accuracy is the best under the static pre-cision single point positioning height angle weighting mode, and the E1E5aE5b triple frequency combination positioning accuracy is the best. The positioning accuracy of dynamic precise point positioning is the best under the height angle weighting mode, the E1E5aE5b positioning accuracy is the best under the equal weight weighting mode, and the E1E5E5b positioning accuracy is the best under the other two positioning modes.
Galileotriple-frequency combinationprecise point positioningmethod of determining weights
万方数据
维普
