| L2C码与L2载波数据质量分析 |
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| 引用本文： | 李卫军,归党莹.L2C码与L2载波数据质量分析[J].地理空间信息,2011,9(2):75-77. |
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| 作者姓名： | 李卫军 归党莹 |
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| 作者单位： | 广东省电力设计研究院;中国地图出版社; |
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| 摘 要： | 基于IGS的L2C信号跟踪站数据验证了具有L2C码的卫星的L2载波的信噪比高于没有L2C码的卫星的L2载波的信噪比,L2载波恢复的数据质量更好.针对不同的接收机,对比分析了C/A码和L2C码多路径效应及观测噪声水平,发现对TRIMBLE NETRS接收机,L2C码误差水平明显高于C/A码,与期望结果相反.
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| 关 键 词： | GPS现代化 L2C码 信噪比 多路径效应 |
L2C Signal and L2 Carrier Data Quality Analysis |
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| LI Weijun,GUI Dangying.L2C Signal and L2 Carrier Data Quality Analysis[J].Geospatial Information,2011,9(2):75-77. |
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| Authors: | LI Weijun GUI Dangying |
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| Abstract: | Based on the IGS tracking station data,the signal-to-noise ratio(SNR) of L2 carrier phase resumed by L2C code was improved obviously,almost close to the SNR of L1 carrier.For different receivers,this paper followed with a study on the multipath and noise levels of C/A and L2C code pseudorange,pointing out for TRIMBLE NETRS receiver,multipath and noise levels of L2C code was significantly higher than C/A code,contrary to expectations. |
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| Keywords: | GPS modernization L2C code SNR multipath effect |
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