Workshop 2018
Ant Sibthorpe - Hourly orbit and clock solutions for GPS, GLONASS, BeiDou, and Galileo with analysis of added value - October 29, 2018 • 579 Views
The production of hourly orbit and clock solutions for the four GNSS constellations has been carried out at JPL primarily to provide reliable, low latency quality control benchmark for the real-time solutions produced by the Global Differential GPS (GDGPS) System [] for a broad array for industrial and government mission-critical applications. However, these hourly solutions are filling a gap in the available (commercially or publicly) non-GPS GNSS solutions, and have several useful applications in their own right. We will describe the unique attributes of the hourly GNSS solutions, including production considerations, accuracy, and integrity, and assess their value in the context of precise point positioning (ppp). In particular we will examine the marginal value of the new constellations, for example, what are the benefits to certain types of ppp scenarios from having 4 constellations versus three. Finally, we will describe the unique value of the hourly solutions to certain types of applications, such as natural hazard monitoring, surveying and photogrammetry.


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