| 群时延相位线性回归测量方法及应用 |
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| 引用本文： | 李垣陵,朱祥维,欧钢. 群时延相位线性回归测量方法及应用[J]. 无线电工程, 2007, 37(8): 28-31,46 |
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| 作者姓名： | 李垣陵 朱祥维 欧钢 |
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| 作者单位： | 国防科技大学电子科学与工程学院卫星导航研发中心,湖南长沙 410073 |
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| 摘 要： | 为解决传统群时延测量方法在工程实现中存在的频率分辨率与测量精度不可得兼的矛盾,提出了一种基于相位线性回归分析的群时延测量方法。在GPS授时接收机电缆传输特性测试中的实验结果表明,新测量方法与GPS授时接收机测得的信号传输时延之间具有好的对应关系。
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| 关 键 词： | 群时延 时间同步 伪距 GPS授时 线性回归 |
| 文章编号： | 1003-3106（2007）08-0028-04 |
| 修稿时间： | 2007-04-11 |
A Measurement of Group Delay Based on Phase Linear Regression Analysis and Its Application |
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| LI Yuan-ling,ZHU Xian-gwei,OU Gang. A Measurement of Group Delay Based on Phase Linear Regression Analysis and Its Application[J]. Radio Engineering of China, 2007, 37(8): 28-31,46 |
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| Authors: | LI Yuan-ling ZHU Xian-gwei OU Gang |
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| Abstract: | To resolve the conflict of frequency resolution with delay accuracy in traditional group delay measurement,a method based on phase linear regression analysis is presented.The relationship between group delay and GPS signal delay is discussed based on experiments.The results show that there is only little difference between them,and the group delay measured by the novel method can be used to indicate the signal delay. |
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| Keywords: | group delay time synchronization pseudo-range GPS time transfer linear regression |
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