When using SimGEN MOT command, how are angular rates defined?
Hi, I am trying to use the SimGEN MOT command. Body rotation rates, body angular acceleration and body angular jerk are part of this command. My understanding from SimREMOTE User Manual and ICD (DGP00792AAA) is that they are calculated as the rotation rates of the body reference frame with respect to ECEF frame, resolved in body reference frame. On the other hand, the attitude is defined as the rotation of the body frame with respect to the local geodetic frame, so it would seem more logical to calculate the rotation rates as the angular rate of the body frame with respect to the local geodetic frame. So, the question is, how are the angular velocity, angular acceleration and angular jerk defined in the MOT command? Thanks in advance!
The angular velocities, accelerations and jerks are those of the ECEF frame resolved in the body axes. If, for instance, an aircraft was flying eastwards along the equator, then the longitude rate is reflected in the body Y-axis of the Angular Velocity term.