Concept of sbas motivation

Concept of SBAS

Motivation

Current SBAS Standard

FDMA Signals

Time and Coordinate Systems

PRN Masks

IOD (Issue of Data)

IOD for GLONASS

Satellite Position

GLONASS Ephemeris

Software Implementation

Dynamic PRN Mask

GLONASS Time Offset

Experiment: Monitor Stations

PRN Mask Transition

Elevation Angle

# of Satellites vs. Mask Angle

Availability vs. Mask Angle

DOP vs. Mask Angle

User Position Error: Mask 5deg

User Position Error: Mask 30deg

RMS Error vs. Mask: User (a)

RMS Error vs. Mask: User (b)

RMS Error vs. Mask: User (c)

Vertical Protection Level