* The probation delay is number of seconds that the EKF innovation checks need to pass for the positon to be declared good after it has been declared bad.
* The probation delay is the number of seconds that the EKF innovation checks need to pass for the position to be declared good after it has been declared bad.
* The probation delay will be reset to this parameter value when takeoff is detected.
* After takeoff, if position checks are passing, the probation delay will reduce by one second for every lapsed second of valid position down to a minimum of 1 second.
* If position checks are failing, the probation delay will increase by COM_POS_FS_GAIN seconds for every lapsed second up to a maximum of 100 seconds.