一种基于光纤环路的时延可控射频储频方法

Delay-controlled radio Frequency Storage Method Based on Fiber Loop

设计了基于光纤环路的可编程射频储频系统。将射频信号调制到光纤环路上,利用开关控制,对加载了射频信号的光信号进行可编程存储控制,经过光电转换器将光信号解调,提取射频信号输出。该方法简单、形成延时量大,易实现,适用于对于雷达或射频的模拟测试。

It is proposed a programmable analog radio frequency memory （ARFM） based on fiber circle. The RF signal is modulated into opticalsignal by electronic-optic modulator （EOM）, after suffering fiber delay, the RF signal travels into the fiber circle by two optical fiber switches. Then thesecond optical fiber switch introduces the optical signal travels into the photo detector （PD）, and the RF signal is demodulated at the output port.