On the estimability of parameters in undifferenced, uncombined GNSS network and PPP-RTK user models by means of S-system theory

Combined BDS, Galileo, QZSS and GPS single-frequency RTK

Multi-GNSS PPP and PPP-RTK: Some GPS and BDS results in Australia

Combined GPS + BDS for short to long baseline RTK positioning

Combined GPS and BeiDou instantaneous RTK positioning

Predicting the success rate of long-baseline gps+galileo (partial) ambiguity resolution

First combined COMPASS/BeiDou-2 and GPS positioning results in Australia. Part II: Single- and multiple-frequency single-baseline RTK positioning

First combined COMPASS/BeiDou-2 and GPS positioning results in Australia. Part I: Single-receiver and relative code-only positionin

Galileo IOV RTK positioning: Standalone and combined with GPS

Characterization of between-receiver gps-galileo inter-system biases and their effect on mixed ambiguity resolution

Instantaneous BeiDou+GPS RTK positioning with high cut-off elevation angles

Medium-distance GPS ambiguity resolution with controlled failure rate

The future of single-frequency integer ambiguity resolution

Performance improvement with low-cost multi-GNSS receivers