| GPS伪随机码畸变的建模与分析 |
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| 引用本文： | 边朗,蒙艳松,张立新,张伟.GPS伪随机码畸变的建模与分析[J].上海航天,2012,29(4):31-36. |
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| 作者姓名： | 边朗 蒙艳松 张立新 张伟 |
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| 作者单位： | 1. 中国空间技术研究院西安分院,陕西西安,710000
2. 中国国家航天局,北京,100037 |
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| 摘 要： | 建立了全球卫星定位系统(GPS)卫星C/A码畸变数学模型,推导了畸变后的C/A码的相关函数,在Matlab软件中进行仿真。结果表明:该模型能合理解释SVN19卫星的测距码畸变故障,并可作为未来伪随机信号畸变的一个合理模型,为导航信号的完好性监测提供理论支持。
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| 关 键 词： | C/A码畸变 相关函数 完好性监测 2OS模型 |
Modeling and Analysis of Distorted GPS PN Code |
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| BIAN Lang,MENG Yan-song,ZHANG Li-xin,ZHANG Wei.Modeling and Analysis of Distorted GPS PN Code[J].Aerospace Shanghai,2012,29(4):31-36. |
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| Authors: | BIAN Lang MENG Yan-song ZHANG Li-xin ZHANG Wei |
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| Institution: | 1. China Academy of Space Technology (Xi＇an), Xi＇an 710000;Shaanxi, China; 2. China National Space Administration, Beijing 100037, China) |
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| Abstract: | The mathematical model of the distorted C/A code for global positioning system was established in this paper. The correlation functions of the distorted code were deduced, and the simulation was made in Matlab software. The result showed that SVN 19 fault could be explained reasonably with this model. It might be a good model for PN code distortion of the future navigation satellites, and could supply a theoretical basis for the integrity monitoring of the navigation signal. |
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| Keywords: | Distorted C/A code Correlation function Integrity monitoring 2OS model |
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