A target determination apparatus includes a reception unit, a judgment
unit, and a determination unit. The reception unit receives a reflection
wave from a target. The judgment unit judges as to whether or not a
fluctuation state of reception intensity of the reflection wave with time
corresponds to a distinction state occurring when the target is a
predetermined type, on the basis of information concerning the reception
intensity of the reflection wave. The determination unit determines type
of the target on the basis of judgment result of the judgment unit.