WAKE ESTIMATION DEVICE, COMPUTER PROGRAM AND WAKE ESTIMATION METHOD

摘要

PROBLEM TO BE SOLVED: To early establish a wake even when there is an observation period when a target cannot be detected in such case where the target appears from mid-course of the observation period.SOLUTION: A search management section 26 (a presumption set section) presumes whether or not a signal from a target is observed in each frame (an observation period) before a current frame (a reference observation period). A wake search section 24 (a wake candidate calculation section) calculates candidates of a wake of the target on the basis of observation data based on the signals observed within the observation period when the signal from the target is presumed to be observed. A wake establishment determination section 25 determines whether or not the wake is established for the candidates calculated. The search management section 26 still continues presuming the signal from the target not to be observed for the frame in which the signal from the target is presumed not to be observed when the wake is determined to be established.