<p>A receiver includes: a block division setting unit which sets a block division setting value according to a delay wave group which has arrived; a replica signal generation unit which generates a replica signal as a replica of a transmission signal according to a reception signal; a delay wave removal unit which removes a delay wave from a reception signal at each predetermined time band by using the block division setting value set by the block division setting unit and the replica signal; a synthesis unit which synthesizes signals from which the delay wave has been removed by the delay wave removal unit at each predetermined time band; and a judgment unit which makes a judgment for the signal synthesized by the synthesis unit.</p>
