Asynchronous Periodic Interference Signals Cancellation in Frequency Domain

This paper proposes a novel interference cancellation technique that prevents radio receivers from degrading due to periodic signals caused by electromagnetic waves emitted high power circuits. The proposed cancels in the frequency domain, even if drift time domain. We propose estimation based on super resolution such as ESPRIT. Moreover, we sequential enhance performance. employs linear filter minimum mean square error criterion with assistance of estimated drifts for cancellation. performance is confirmed computer simulation. achieves gain more than 40dB at higher part band. canceler superior performance, parameter sets are carefully selected. relaxes constraints, and enables achieve upper bound.