| GPS射频干扰浅析 |
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| 引用本文： | 吴晓进.GPS射频干扰浅析[J].全球定位系统,2003,28(4):19-23. |
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| 作者姓名： | 吴晓进 |
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| 作者单位： | 西安导航技术研究所,陕西,西安,710068 |
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| 摘 要： | 由于GPS接收机的工作有赖于GPS卫星信号，所以易受射频干扰(RFI)的影响。射频干扰可能会引起导航精度的降低或接收机跟踪的丢失。本文论述了信号噪声比和信号噪声密度比的概念，分析了射频干扰对GPS接收的影响，最后说明了直接检测RFI的方法以及RFI源的定位。
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| 关 键 词： | GPS 射频干扰 信号噪声比 信号噪声密度比 射频干扰源 |
GPS and radio frequency interference |
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| WU Xiao-jin.GPS and radio frequency interference[J].Gnss World of China,2003,28(4):19-23. |
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| Authors: | WU Xiao-jin |
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| Abstract: | GPS receiver operation depends upon the external radio fiequency signal. so, its operation can be affected by radio frequency interference(RFI)easily. It is possible that the RFI can result in navigation accuracy degradation or receiver tracking loss. the concept of signal-to -noise ratio and the signal-to-noise density ratio, and the impact of RFI on GPS reception are described and analyzed. The method of directly detecting RFI and locating the source of RFI is also introduced. |
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| Keywords: | GPS radio frequency interference signal-to-noise ratio RFI source |
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