| 扩频码和数据速率选择对导航系统兼容性的影响 |
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| 作者姓名： | 刘文山 赵雯雯 王岗 谢军 |
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| 作者单位： | 中国空问技术研究院西安分院,西安710000 |
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| 摘 要： | 针对导航系统干扰计算以导航信号码片功率谱代替导航信号功率谱分析导航系统干扰大小，文章分析了数据速率、码速率和码长对导航信号功率谱的影响，提出了数据速率大于或等于码速率除码长时，可用码片功率谱代替信号功率谱：同时以CA码为例分析了真实码与替代码对系统内的干扰偏差。
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| 关 键 词： | 频谱分离系数 兼容性 载噪比 |
Effects of spreading code selection and data rate on navigation signal interference |
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| Authors: | LIU Wen-shan ZHAO Wen-wen WANG Gang XIE Jun |
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| Institution: | ( China Academy of Space Technology ( Xi＇ an), Xi＇ an 710000, China) |
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| Abstract: | Focusing on using the pulse power spectrum density instead of the navigation signal power spectrum density to calculate the intrasystem interference ,This paper analyzes the effects of the date rate, code rate and the length of the navigation spreading code on the interference between the system, the pulse power spectrum density that can be used instead of the signal power spectrum density are proposed if a data rate greater than or equal to code length than the code rate. Finally, the interference of bias because of the real navigation signals power spectrum density and pulse power spectrum density is analyzed. |
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| Keywords: | SSC Navigation System Compatibility C/NO |
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