| 天线时延标定在卫星导航技术中的应用 |
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| 引用本文： | 原亮,王宏兵,刘昌洁.天线时延标定在卫星导航技术中的应用[J].无线电工程,2010,40(10):32-34,49. |
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| 作者姓名： | 原亮 王宏兵 刘昌洁 |
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| 作者单位： | 1. 中国人民解放军61081部队,北京,100094
2. 中国人民解放军61081部队,北京,100094;南开大学,天津,300000 |
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| 摘 要： | 卫星导航系统通过信号传播时延的测量来实现定位、导航和授时,信号传播时延测量计算需要已知天线时延,天线时延标定准确度是影响系统服务精度的关键因素。叙述了卫星导航系统中天线时延的定义及通常测量方法,提出了2种利用卫星导航系统自身测距能力的天线时延标定方法,介绍了天线相位中心测量方法,并给出了卫星导航系统应用中的天线相位中心点坐标的归算方法。
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| 关 键 词： | 卫星导航 天线 时延标定 相位中心 |
The Application of Antenna Time-Delay Calibration in Satellite Navigation Technology |
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| YUAN Liang,WANG Hong-bing,LIU Chang-jie.The Application of Antenna Time-Delay Calibration in Satellite Navigation Technology[J].Radio Engineering of China,2010,40(10):32-34,49. |
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| Authors: | YUAN Liang WANG Hong-bing LIU Chang-jie |
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| Affiliation: | 1.The Unit 61081 of PLA,Beijing 100094,China;2.Nankai University,Tianjin 300000,China) |
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| Abstract: | Satellite navigation systems achieve positioning,navigation and timing through measurement of signal propagation time-delay.It is needed to know antenna time-delay for the measurement and calculation of signal propagation time-delay.The accuracy of antenna time-delay calibration is a pivotal factor that affects the service precision of the satellite navigation systems.The definition of antenna time-delay in the satellite navigation systems is illuminated and the usual method of measuring antenna time-delay is introduced,two methods of calibrating the antenna time-delay by dint of measurement capability in the satellite navigation systems are put forward,the method of measuring the antenna phase center is introduced,and the method of calculating the coordinate of the antenna phase center in the satellite navigation systems is presented. |
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| Keywords: | satellite navigation antenna time-delay calibration phase center |
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