| 一种卫星扩频信号的捕获新算法 |
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| 引用本文： | 徐颖,王菊,吴嗣亮. 一种卫星扩频信号的捕获新算法[J]. 北京理工大学学报, 2008, 28(10): 910-913 |
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| 作者姓名： | 徐颖 王菊 吴嗣亮 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 为了提高捕获算法性能和减小各通道间信号互扰,提出了一种新的捕获算法. 在接收端采用线性内插的信号恢复方法进行多通道信号检测,利用检测到的信号消除通道间信号互扰. 为了改善捕获性能,对门限检测进行了改进仿真,结果表明,当各通道信号功率相当或者一通道信号功率明显大于其他信号时,该算法均可有效提高捕获性能.
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| 关 键 词： | 门限检测 线性内插 码间互扰 |
| 收稿时间： | 2008-03-20 |
A New Acquisition Algorithm for Satellite Spread Spectrum Signal |
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| XU Ying,WANG Ju and WU Si-liang. A New Acquisition Algorithm for Satellite Spread Spectrum Signal[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2008, 28(10): 910-913 |
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| Authors: | XU Ying WANG Ju WU Si-liang |
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| Affiliation: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A new acquisition algorithm is proposed to improve the acquisition performance and reduce multi-access interference.Linear interpolation is used to replicate the original signal.Threshold detection algorithm is improved for better acquisition performance.Simulation experiment results showed that the new algorithm effectively improves the acquisition performance. |
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| Keywords: | threshold detection linear interpolation multi-access interference |
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