Workshop 2017

The positioning stability tests with the fixed inter-system biases on the Multi-GNSS kinematic PPP

July 4, 2017 • 179 Views

Workshop 2017 - Byung-Kyu Choi - This paper presents an analysis of positioning stability in the Precise Point Positioning (PPP) method using data from the multi-GNSS constellations (GPS, GLONASS, Galileo and BeiDou). The difference between navigation satellite systems induce the inter-system biases (ISBs). GNSS data processing has to consider various ISBs such as GPS-GLONASS, GPS-Galileo, and GPS-BeiDou. These biases can be estimated as key parameters in the multi-GNSS PPP processing. We develop a unified method with the fixed ISBs for multi-GNSS PPP, where ISBs do not need to be considered. To verify our model, we perform multi-GNSS kinematic PPP under the elevation angle constraints of GNSS satellite. Comparing to traditional combined PPP solution, our method shows more stable positioning results at higher elevation an

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