| 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. |
| Received:August 10, 2006Revised:October 28, 2006 |
| 基金项目: |
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| Analysis and Comparison of Delay Measuring Methods |
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| 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 |
