高速公路ETC系统邻道抗干扰技术研究

The Study on Anti- jamming Technique of Adjacent Channel of Expressway ETC System

在介绍高速公路ETC系统邻道干扰现象及产生原因的基础上,提出了采用相干解调方式对接收到的信号进行解调,在有效滤波电路的配合下,理论上相干解调方式能完全抑制邻道干扰信号。

On the basis of the introduction of adjacent channel interference phenomenon in expressway ETC system, demodulating the received signals with the coherent demodulation method has been proposed. With the coordination of effective filter circuits, theoretically, coherent demodulation method can completely restrain the adjacent channel interference signals.