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研究一种基于PID温控的高精度离散可调射频光纤延迟技术,利用PID算法进行温控,温控精度高达0.1℃,解决了温度变化引起光纤延时变化问题,同时应用单片机和光开关组成可控延迟光纤延迟阵列,达到射频信号延时离散可调的效果。性能测试结果表明,利用该技术设计的射频信号光纤延时器,生产过程便捷,延时精度高,设定纳秒级延时时的延时误差小于5ps,符合实际工业生产要求。
This paper studies a high precision discrete adjustable RF optical fiber delay technology based on PID temperature control. The PID algorithm is used for temperature control. The precision of temperature control is up to 0.1 ℃, which solves the problem of optical fiber delay variation caused by temperature change. At the same time, Control delay fiber delay array, to achieve the radio frequency signal delay discrete adjustable effect. The performance test results show that the RF signal fiber delay device designed by this technology has the advantages of convenient manufacturing process and high delay precision, and the delay error of the nanosecond delay is less than 5ps, which is in line with the actual industrial production requirements.