Difference between revisions of "DGPS"
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The Differential GPS present here is based on the Ublox chip M8P. There are two types of Ublox M8P: | |||
There are two | * 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 ground station should know its position. This can be done by locating the ground antenna to a know position and initializing the ublox to this position, or programming the ublox to send its estimate converging position after a given time and giver precision | |||
The as a ground station acquire observation data from its fixed position and output these data to the NEO-M8P rover (mobile). | |||
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. | This way the ground station transmits also its position. | ||
The DGPS use three messages typed from RTCM3 standard protocol: | The DGPS use three messages typed from RTCM3 standard protocol: | ||
Revision as of 11:25, 26 February 2017
The Differential GPS present here is based on the Ublox chip M8P. There are two types 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 ground station should know its position. This can be done by locating the ground antenna to a know position and initializing the ublox to this position, or programming the ublox to send its estimate converging position after a given time and giver precision
The as a ground station acquire observation data from its fixed position and output these data to the NEO-M8P rover (mobile).
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