Relay device and sneak canceller

摘要

Disclosed is a wraparound canceller that-in a relay device that receives the OFDM signals of multiple channels using a reception antenna and retransmits said received signal from a transmission antenna-eliminates a wraparound signal that is superimposed on the aforementioned received signal by means of the radio waves transmitted from the aforementioned transmission antenna wrapping around the aforementioned reception antenna. Said wraparound canceller is provided with a signal extraction means, a single lag profile calculation means, an elimination signal generating means, a wraparound elimination means, a frequency conversion means, a mixing means, and a level adjustment means.