基于FPGA的时间数字转换技术综述

Overview of TDC Technology Based on FPGA

基于FPGA的时间数字转换(FPGA-Based Time to Digital Converters,FPGA-TDC)具有较短的开发周期和更灵活的开发方式,随着针对TDC的研究工作越来越多,应用于不同场景的各种FPGA-TDC架构也相应出现,但是对于这些架构的分类和命名,并没有一个统一的标准。采用一种以分辨率来源为分类依据的方法,对近几年国内外研究机构关于FPGA-TDC的成果进行了分类,综述了该领域的技术方法,总结了各类架构的优缺点,并且对FPGA-TDC未来的发展做出了展望。

The FPGA-TDC has a shorter development cycle and more flexible development methods.With the increasing research on TDC,various FPGA-TDC architectures applied to different scenarios have also emerged.However,there is no unified standard for the classification and naming of these architectures.This article adopts a classification method based on resolution sources to classify the achievements of domestic and foreign research institutions on FPGA-TDC in recent years,summarizes the technical methods in this field,summarizes the advantages and disadvantages of various architectures,and makes prospects for the future development of FPGA-TDC.