| GPS多路径信号的广义倒谱相关函数分析法 |
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| 引用本文： | 王卫国,蔡俊武,曾德贤,董绪荣. GPS多路径信号的广义倒谱相关函数分析法[J]. 装备指挥技术学院学报, 2008, 19(6): 71-75. DOI: 10.3783/j.issn.1673-0127.2008.06.017 |
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| 作者姓名： | 王卫国 蔡俊武 曾德贤 董绪荣 |
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| 作者单位： | 1. 装备指挥技术学院,研究生管理大队,北京,101416
2. 装备指挥技术学院,科研部,北京,101416 |
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| 摘 要： | 根据倒谱分析方法的原理，给出了倒谱分析方法和广义倒谱相关函数分析法用于分析GPS多路径信号的原理图及分析过程，并利用Matlab工具进行了仿真。仿真结果表明：广义倒谱相关函数分析法在延迟估计中优于倒谱法，可以消除发射源、各路径传递函数以及卷积干扰对延迟估计的影响。而在直达波和多路径信号分离中，倒谱分析方法更适用。
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| 关 键 词： | 多路径信号 倒谱 GPS信号 |
Generalized Cepstrum Correlation Function Analysis Method on Multipath Signals of GPS |
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| WANG Weiguo,CAI Junwu,ZENG Dexian,DONG Xurong. Generalized Cepstrum Correlation Function Analysis Method on Multipath Signals of GPS[J]. Journal of the Academy of Equipment Command & Technology, 2008, 19(6): 71-75. DOI: 10.3783/j.issn.1673-0127.2008.06.017 |
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| Authors: | WANG Weiguo CAI Junwu ZENG Dexian DONG Xurong |
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| Affiliation: | WANG Weiguo, CAI Junwu, ZENG Dexian, DONG Xurong (1. Company of Postgraduate Management, the Academy of Equipment Command ＆Technology, Beijing 101416, China; 2. Department of Scientific Research, the Academy of Equipment Command ＆ Technology, Beijing 101416, China) |
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| Abstract: | Based on the principle of cepstrum analysis method, two principle and processing diagrams of the cepstrum analysis and the generalized cepstrum correlation analysis are given for the GPS multipath signals analysis. The main processes are simulated with Matlab. The simulation results demonstrate, the generalized cepstrum correlation function method is superior to the cepstrum method in the estimation of delay time. It can also cancel the affects of the transmitter source, path transmission function and convolution interference. In the apartment of direct and multipath signal, the cepstrum method is utilized more often. |
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| Keywords: | multi-path signal cepstrum GPS signal |
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