Target localization using multi-static UWB sensor for indoor monitoring system

The ultra-wideband (UWB) radio sensor systems which can accurately detect a distance and behavior of a human target are recently attracted considerable attention for various applications such as elderly care monitoring and intruder detection. The UWB sensor can generally estimate the distance and motion informations by using a monostatic-placed antenna. With the sensor, it is impossible to identify an accurate location (e.g. indoor and outdoor) of a target, because the sensor measures only the distance between the antenna and the target. In this paper, we propose a human target localization method using an UWB sensor with multistatic placed antennas. The method can estimate not only a distance and a motion of the target but also a position of the target. We investigate the localization performances by computer simulations and discuss effectiveness of our proposal.