Method And Apparatus For Removing Introduced Signal And Cognitive Radio Apparatus Using Thereof

摘要

PURPOSE: An inflow signal elimination method, apparatus, and recognition wireless communication apparatus using the same are provided to improve the utilization of an antenna by syntagmatically using a data transmission and reception antenna and a spectrum sensing antenna as one antenna. CONSTITUTION: A signal creation unit creates reverse-phase transmission signals by countervailing inflow transmission signals. A data transmission signal transmitted form a data transmission unit is flowed in the inflow transmission signal. A transmission signal elimination unit(460) eliminates the inflow transmission signal by combining with the reverse-phase transmission signal. The signal creation unit includes a signal extraction unit, a phase control unit, and a signal control unit. The signal compensates routes of a signal. The signal control unit controls the size of the signal.