Heart rate tracking for three of the Alaska bears showed a drop from 55 beats per minute on average before hibernation to 14 erratic ones per minute in winter.

Variable sampling rate tracking, which is based on nets or grids multi-sensor asynchronous fusion tracking, is an important operating modes in phased array radar.

A coordinated control scheme of 4ws and active suspension based on yaw rate tracking is proposed, which distributes the control force between front and rear active suspensions and hen.