高速差分信号适配器的定值

Calibration of High Speed Differential Signal Adapters

高速差分信号适配器作为校准数字视频信号发生器物理层参数的关键设备,需对插入损耗、回波损耗、群时延等参数进行定值,从而确定对校准结果的影响。本文通过对其原理进行分析、定值过程(包括方法研究,装置搭建等)进行论述及不确定度评定,为该类设备校准技术的研究提供参考。

As the key equipment to calibrate the physical layer parameters of digital video signal generator,the high-speed differential signal adapter needs to set the insertion loss,return loss,group delay and other parameters to determine the impact on the calibration result.In this paper,the principle analysis,the setting process(including method research,device construction,etc.)are discussed and the uncertainty evaluation is provided for the research of this kind of equipment calibration technology.