How to get the speed graph and acceleration graph in analyze of QGC

ArduRover Rover 4.0
1

HI, now i want to get the speed graph and acceleration graph of the car , which one should I choose in analyze of QGC? THANKS.

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2

Hi @yezishu2181345,

For speed there are two options:

  • GLOBAL_POSITION_INT.vx and .vy but you would need to sqrt(sq(vx)+sq(vy)) to get the total velocity in cm/s
  • GPS_RAW_INT.vel shows the ground speed in cm/s taken directly from the GPS (i.e. not from the more accurate EKF)

For acceleration I think you need to look at the raw sensor values:

  • RAW_IMU.xacc

hope this helps