Global RTK Positioning in Graphical State Space

Precise Real-Time Positioning Using Network RTK

In the classic RTK method using a single reference station the rover needs to work within a short range from the reference station due to the spatial decorrelation of distance-dependent errors induced by the ionosphere, troposphere and orbital errors. The operating range of RTK positioning is thus dependent on the existing atmospheric conditions and is usually limited to a distance of up to 10-...

Network-based RTK Positioning Using Integrated GPS and GLONASS Observations

With the recent rapid revival of the GLONASS constellation, it is possible for the GLONASS system to provide Full Operational Capability (FOC) service before the end of 2011. CDMA signals are now additionally modulated onto the first GLONASS-K satellite which was launched on February 26, 2011. It is envisaged that GNSS users will benefit from more visible satellites, better precision and higher...

Relative Positioning with RTK Filtering and PPP FILLING THE GAPS

SPACE APPLICATIONS OF THE GLOBAL POSITIONING AND TIMING SERVICE (GPtS)

Alison Brown, NAVSYS Corporation ABSTRACT Spaceborne Global Positioning System (GPS) technology is being widely accepted by both the commercial space industry and by NASA as a key enabler for improving space operations. The use of GPS for space missions has resulted in improvements in space vehicle autonomy and reduced design and operations cost. The current GPS constellation includes 24 MEO sa...

Kinematic Relative GPS Positioning Using State-Space Models: Computational Aspects

Dr. Chang is Associate Professor of Computer Science at McGill University. He holds a B.Sc and an M.Sc in Computational Mathematics from Nanjing University, China, and a Ph.D in Computer Science from McGill University. His main research area is scientific computing with particular emphasis on matrix computations and applications. He has been involved in GNSS research since 1998 and his current ...