Stable and reliable high-precision satellite orbit products are the prerequisites for the
positioning services with high performance. In general, the positioning accuracy depends …

Real-time satellite orbit and clock estimations are the prerequisite for Global Navigation
Satellite System (GNSS) real-time precise positioning services. To meet the high-rate update …

PPP-RTK, known as integer ambiguity resolution-enabled precise point positioning, requires
precise satellite-related products and atmospheric corrections estimated in a global …

Ionospheric delay modeling is not only important for Global Navigation Satellite System
(GNSS) based space weather study and monitoring, but also an efficient tool to speed up the …

Due to the three-step implementation of the BeiDou Navigation Satellite System (BDS),
users face the coexistence of BDS-2 and BDS-3 for a period of time. In particular, the real …

During the past years, real-time precise point positioning has been proven to be an efficient
tool in the applications of navigation, precise orbit determination of LEO as well as …

Real-time precise orbit and clock products are necessary for Global Navigation Satellite
System (GNSS) real-time precise applications. In the classical strategy, the real-time orbit is …

Real-time satellite orbit and clock product is a key prerequisite for real-time precise
positioning service based on precise point positioning (PPP). With the rapid development of …

Abstract The Galileo High Accuracy Service (HAS) provides free corrections for real-time
precise point positioning (PPP) worldwide. PPP can provide high-stability time …

The computational efficiency is critical with the increasing number of GNSS satellites and
ground stations since many unknown parameters must be estimated. Although only active …