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Collision prediction system using intermittent ultrasonic wave

In this paper we propose a method to determine using ultrasonic wave whether a moving object collides with observer and to predict time to collide in case of colliding with it. In previous study, in the case where a target is relatively close to an observer and is moving at low speed, collision detection was impossible. In order to resolve this problem, we constructed new algorithm that collision detection is performed using a trajectory of the moving object. We conduct experiments to confirm an usefulness of the algorithm actually. Experimental results show that it can work as a collision predictor.