An Impulse Interference Suppression Algorithm for Electric Energy Data Acquire System

Impulse interference is one of the major interferences in power system, and the existed algorithms mainly focus on narrow-band interference when using wireless communication, which have little effect on impulse interference. Aiming at this problem, this paper proposes an impulse interference suppression algorithm combined with adaptive gain control (AGC) in Electric Energy Data Acquire System, which uses correlation of the interference to suppress the interference. Simulation results show that: On the condition of Gaussian noise plus impulse interference, when the interference to signal ratio (ISR) is 25 dB, compared with AGC, the algorithm can have a 1.2~5.1 dB promotion of the bit error ratio (BER).