<short_desc>Minimum time of arrival delta between non-IMU observations before data is downsampled</short_desc>
<long_desc>Baro and Magnetometer data will be averaged before downsampling, other data will be point sampled resulting in loss of information.</long_desc>
<short_desc>Expected range finder reading when on ground</short_desc>
<short_desc>Expected range finder reading when on ground</short_desc>
<long_desc>If the vehicle is on ground, is not moving as determined by the motion test controlled by EKF2_MOVE_TEST and the range finder is returning invalid or no data, then an assumed range value of EKF2_MIN_RNG will be used by the terrain estimator so that a terrain height estimate is avilable at the start of flight in situations where the range finder may be inside its minimum measurements distance when on ground.</long_desc>
<long_desc>If the vehicle is on ground, is not moving as determined by the motion test controlled by EKF2_MOVE_TEST and the range finder is returning invalid or no data, then an assumed range value of EKF2_MIN_RNG will be used by the terrain estimator so that a terrain height estimate is avilable at the start of flight in situations where the range finder may be inside its minimum measurements distance when on ground.</long_desc>