| 高动态环境下GPS信号处理与分析 |
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| 引用本文： | 朱江华,鲍其莲.高动态环境下GPS信号处理与分析[J].电子测量技术,2011,34(1):31-34. |
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| 作者姓名： | 朱江华 鲍其莲 |
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| 作者单位： | 上海交通大学仪器科学与工程系; |
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| 摘 要： | 为了研究如何消除高动态环境下多普勒频移对GPS信号的影响,首先根据多普勒频移,中频信号频率,载噪比等参数建立高动态GPS中频信号数学模型,得出一个高动态中频信号.然后,根据模拟的中频信号,分析载体的高动态运动对捕获和跟踪造成的影响,结合跟踪环的工作原理和数学模型,设计一个环路噪声带宽随多普勒频移可变化的跟踪环路,得到了...
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| 关 键 词： | 高动态 中频信号 多普勒频移 噪声带宽 |
High-dynamic GPS Signal processing and analysis |
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| Zhu Jianghua,Bao Qilian.High-dynamic GPS Signal processing and analysis[J].Electronic Measurement Technology,2011,34(1):31-34. |
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| Authors: | Zhu Jianghua Bao Qilian |
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| Affiliation: | Zhu Jianghua Bao Qilian(Department of Instrument Science& Engineering Shanghai Jiaotong University,Shanghai 200240) |
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| Abstract: | A GPS intermermediate frequency(IF) signal mathematical model was upbuilded at the beginning of the paper,and using this model we can generate an authenticity and reliablity signal.Then the signal is used as the data source of the acquisition and tracking to seek the relationship between noise bandwidth and doppler frequence shift.At the tailer part of the paper,A simulation verifies the relationship.So this method is very useful for the GPS signal tracking. |
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| Keywords: | high-dynamic IF signal doppler frequence noise bandwidth |
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