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GPSMessages / 9RTGPSVelNED2

RT_GPS_Vel_NED_2 GPS Down velocity

RT_GPS_Vel_NED_2: 140, 18 (0x8C1220 + unit id) (0x312)

Byte 0: Validity

Byte 1: Accuracy (D)

Bytes 2-4: GPS Velocity D (m/s)

Bytes 5-7: Unused


NED velocities are velocities in the local North, East and Down directions at the current location.

Speed resolution is m/s * 1e-4

NED velocity has components in the local North, East and Down directions. E.g. an NED velocity of 2, 2, 0 implies that the vehicle has a velocity component in the North direction of 2m/s and a velocity component in the East direction of 2m/s, and no vertical velocity component (the vehicle is travelling exactly on the flat). In this case, the vehicle is heading NE, and would have a speed of 2.83m/s (square root of 2*2 + 2*2 + 0*0).

These measurements are from GPS data only.

Page last modified on November 22, 2013, at 11:56 AM