The impulse noise is the greatest barrier existed in power line communication, which can lead to high bit error rate (BER).It is necessary to consider adopting complicated channel coding technology.

• 摘要脉冲噪声是电力线通信中存在的最大障碍，造成信号的误码率(BER)高，必须考虑采用复杂的信道编码技术。