Moving baseline RTK positioning

In most RTK applications, the reference receiver remains stationary at a known location, and the rover receiver moves. However, Moving Baseline RTK is an RTK positioning technique in which both reference and rover receivers can move. The receiver uses the Moving Baseline RTK technique to determine the heading vector between its two antennas. Internally raw code and carrier measurements from GPS and GLONASS satellites are processed at a rate up to 20 Hz when linking two independent receivers. The dual-antenna BD982 receiver module and the BX982 receiver enclosure can produce up to 50 Hz moving baseline solutions (for the baseline between the two antennas). The dual-antenna BD992 receiver module and the BX992 receiver enclosure can produce up to 100 Hz moving baseline solutions (for the baseline between the two antennas).

Moving Baseline RTK can be used in applications where the relative vector between two antennas is precisely known to centimeter level, while the absolute position of the antennas will depend on the accuracy of the positioning service it uses (RTK, OmniSTAR, RTX, DGPS, SBAS, or Autonomous). Alternatively, Moving Baseline RTK can be used to position multiple antennas with respect to each other where the distances between antennas are subject to change, for example, a fleet of drones.