摘要: |
介绍了5种测量时延的先进方法。通过对这些方法的深入分析和大量实验,得出了这些方法的最佳测量不确定度。同时还提出了“时延传递标准”的新方案,该方案的测量不确定度可达0.01—0.02ns。 |
关键词: 时延测量 群时延 相位 测量不确定度 时延传递标准 |
DOI:10.3969/j.issn.1001-893X. |
投稿时间:2006-08-10修订日期:2006-10-28 |
基金项目: |
|
Analysis and Comparison of Delay Measuring Methods |
|
() |
Abstract: |
Five advanced time delay measuring methods are introduced. Through deep analysis and a lot of experiments, optimum uncertainty of measurement for these methods is obtained. In addition, a new concept of Delay Delivery Standard is presented, in which uncertainty of measurement can be up to 0.01 -0. 02 nanosecond. |
Key words: delay measurement group delay phase uncertainty of measurement delay delivery standard |