Narrowband Interference Cancellation Technology of OFDM System based on Artificial Neural Network

Aiming at the problem that the Fourier transform in OFDM system will cause power leakage of narrowband interference, which will reduce the performance of communication system, this paper proposes a narrowband interference cancellation technology based on artificial neural network. This paper first uses the FCME algorithm to preprocess the received signals, and then uses the artificial network structure to extract eigenvalues from the time domain and perform narrowband interference estimation. Finally, simulation experiments prove that the method can accurately estimate narrowband interference and improve the performance of communication systems.