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I have a big miss conception between Yaw and attitude ?

Isn't both represent "how far is the quad from earth ?"

Also if you could post how to calculate them from IMU (gyro +accele + magent )

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I think you're confusing two words that are spelled almost identically:

Altitude: (with an L) is the distance from the vehicle to the earth. It is given in terms of meters.

Attitude: (with a T) refers to the orientation of the vehicle with respect to a reference frame. It is usually given in terms of roll, pitch, and yaw, which are all essentially angles of rotation along the x, y, or z axis.

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  • $\begingroup$ Great !!!!!!!!!!!!!!!!!! $\endgroup$
    – xsari3x
    Commented Aug 31, 2014 at 20:14

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