Difference between revisions of "DGPS"
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THe Differential GPS present here is based on the Ublox chip M8P. | |||
There are two type of Ublox M8P: | |||
- NEO-M8P-0: acting as the rover (mobile) | |||
- NEO-M8P-2: acting as the rover (mobile) or as the ground station | |||
The NEO-M8P-2 acting as a ground station acquire observation data from its fixed position and output these data to the NEO-M8P rover (mobile). | |||
The ground station can be initialized with a know position, or programed to converge within a given time and precision. | |||
This way the ground station transmits also its position. | |||
The DGPS use three messages typed from RTCM3 standard protocol: | |||
- RTCM3.2 1005 : Ground station position | |||
- RTCM3.2 1077 : GPS observation data | |||
- RTCM3.2 1087 : Beidou observation data | |||
as well as its position. | |||
The ground station | |||
The NEO-M8P acting as a rover (mobile) computes the position of the ground station acquire observation data from its mobile position and | |||
These data are transmitted as new messages within the paparazzi telemetry. The | |||
Revision as of 11:12, 26 February 2017
THe Differential GPS present here is based on the Ublox chip M8P. There are two type of Ublox M8P: - NEO-M8P-0: acting as the rover (mobile) - NEO-M8P-2: acting as the rover (mobile) or as the ground station
The NEO-M8P-2 acting as a ground station acquire observation data from its fixed position and output these data to the NEO-M8P rover (mobile). The ground station can be initialized with a know position, or programed to converge within a given time and precision. This way the ground station transmits also its position. The DGPS use three messages typed from RTCM3 standard protocol: - RTCM3.2 1005 : Ground station position - RTCM3.2 1077 : GPS observation data - RTCM3.2 1087 : Beidou observation data
as well as its position.
The ground station
The NEO-M8P acting as a rover (mobile) computes the position of the ground station acquire observation data from its mobile position and
These data are transmitted as new messages within the paparazzi telemetry. The