Interference Mitigation in HPLC with Hybrid Noise

High-Speed Power Line Communications (HPLC) is a key technology for the smart grid. And the diverse interference noise from the power line is an important factor affecting the transmission quality of Power Line Communication (PLC), directly reducing the reliability performance of the smart grid cyber-physical system. To improve the anti-interference capability of PLC, a hybrid interference mitigation method combining amplitude-limiting, adaptive filtering, and the LS-based channel estimation based on time-domain windowing for HPLC signals is proposed in this paper. The effectiveness is verified by simulation in the practical grid environment with a hybrid noise model.