The design of reliable high speed communication systems for power line communication (PLC) requires an accurate knowledge of such channel specific characteristics as attenuation, impedance and noise.

为了设计基于电力线通信（ PLC）的高速可靠通信系统，必须了解衰耗、阻抗、噪声等电力线信道特性。

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First, power line Communication (PLC) is introduced. The noise and attenuation characteristics of power line channel are measured and modeled.

首先，介绍了电力线通信(plc)，测量并分析了电力线信道的噪声和复衰减特性，并分别进行了建模。

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The Power Line Communication (PLC) is a kind of rising communication mode differing from traditional communication such as telecommunication , telephone, radio communication, etc.

电力线通信是继电信、电话、无线通讯、卫星通讯之后的又一通信网。

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