| 利用GPS伪距导出的多普勒频移测速 |
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| 引用本文： | 夏敬潮,叶世榕.利用GPS伪距导出的多普勒频移测速[J].测绘信息与工程,2012,37(6):83-84. |
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| 作者姓名： | 夏敬潮 叶世榕 |
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| 作者单位： | 武汉大学卫星导航定位技术研究中心,武汉市珞喻路129号,430079 |
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| 摘 要： | 推导了利用伪距观测值获取多普勒频移的公式,并利用导出的多普勒频移来确定载体的速度。实测数据表明,利用伪距导出的多普勒频移测速,可以达到dm/s级的水平。在没有原始多普勒观测值或者相位观测出现了频繁周跳的情况下,可以利用伪距导出的多普勒频移获得载体概略的速度信息。
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| 关 键 词： | GPS 多普勒频移 伪距 相位 测速 |
Velocity Determination Using Doppler Shift Derived from GPS Pseudorange Observations |
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| XIA Jingchao,YE Shirong.Velocity Determination Using Doppler Shift Derived from GPS Pseudorange Observations[J].Journal of Geomatics,2012,37(6):83-84. |
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| Authors: | XIA Jingchao YE Shirong |
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| Institution: | (Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | The formula of deriving Doppler shift of GPS signals from pseudorange observations is presented and used to get the velocity of receiver.We find that the precision of velocity determination using pseudorange-derived Doppler shift is at the level of dm/s.This method of velocity determination is quite useful when the original Doppler shift is absent or the carrier phase observations suffer from frequent cycle slips. |
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| Keywords: | GPS Doppler shift pseudorange carrier phase velocity determination |
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