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| 一种基于窄相关器差分的多径误差抑制方法 | |
| 引用本文： | 孔德庆,施浒立,胡超. 一种基于窄相关器差分的多径误差抑制方法[J]. 宇航学报, 2008, 29(6): 1834-1839. DOI: 10.3873/j.issn.1000-1328.2008.06.029 |
| 作者姓名： | 孔德庆 施浒立 胡超 |
| 作者单位： | 中国科学院国家天文台，北京 100012；中国科学院研究生院，北京 100039 |
| 基金项目： | 中国科学院知识创新工程项目 |
| 摘 要： | 提出了一种新的基于窄相关器差分的多径误差抑制方法。该方法采用两组独立的窄相 关器，将其码鉴相结果差分后，对其中一个窄相关器输出进行修正，作为码相输出结果和载 波相位鉴相中码发生器的输入。理论分析和仿真表明，这种方法可以显著抑制多径效应引起 的误差，优于一般的窄相关技术。 |
| 关 键 词： | GPS 多径干扰 差分 窄相关 |
| 收稿时间： | 2007-09-14 |
A New Method for Multipath Mitigation Based on Difference of Narrow Correlators |
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| KONG De-qing,SHI Hu-li,HU Chao. A New Method for Multipath Mitigation Based on Difference of Narrow Correlators[J]. Journal of Astronautics, 2008, 29(6): 1834-1839. DOI: 10.3873/j.issn.1000-1328.2008.06.029 | |
| Authors: | KONG De-qing SHI Hu-li HU Chao |
| Abstract: | A new method for multipath mitigation based on difference of narrow correlators is presented.Two independent narrow correlators are used in this method.The discrimination result of either correlator is corrected by the difference of code phase discrimination of the two narrow correlators.The corrected result is used as the final discrimination result and the input of the code generator of carrier phase discrimination.Theoretical analysis and simulation results show that this new mitigation method can highly enhance multipath mitigation performance than usual narrow correlator. |
| Keywords: | GPS Multipath effects Difference Narrow correlation |
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