| 多通道直扩信号并行捕获算法 |
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| 引用本文： | 王永庆,高磊,吴嗣亮. 多通道直扩信号并行捕获算法[J]. 北京理工大学学报, 2010, 30(2): 202-205 |
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| 作者姓名： | 王永庆 高磊 吴嗣亮 |
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| 作者单位： | 北京理工大学,雷达技术研究所,北京,100081;上海航天电子技术研究所,上海,201109 |
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| 基金项目： | 国家“八六三”计划项目(1010021310XXX) |
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| 摘 要： | 为了缩短多通道直接序列扩频信号的捕获时间,提出了一种新的多通道并行捕获算法.该算法将多个通道的伪码序列进行叠加,形成一个新的伪码序列,由新的伪码序列和多通道直扩信号进行相关,检测到信号后再判决具体通道.分析和仿真结果均表明,提出的算法在不增加实现资源的情况下,以少量降低相关信噪比为代价缩短了捕获时间,适用于多通道直扩信号的快速捕获.
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| 关 键 词： | 直接序列扩频 并行捕获 相关信噪比 |
| 收稿时间： | 2009-07-10 |
A Parallel Acquisition Algorithm for Multichannel Spread Spectrum Signals |
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| WANG Yong-qing,GAO Lei and WU Si-liang. A Parallel Acquisition Algorithm for Multichannel Spread Spectrum Signals[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2010, 30(2): 202-205 |
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| Authors: | WANG Yong-qing GAO Lei WU Si-liang |
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| Affiliation: | 1.Radar Research Laboratory;Beijing Institute of Technology;Beijing 100081;China;2.Shanghai Aerospace Electronic Technology Institute;Shanghai 201109;China |
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| Abstract: | In order to shorten the acquisition time of multichannel combined acquisition,a new parallel acquisition algorithm is proposed.Several code sequences are added as a new code sequence.The input signal is correlated with the new code sequence.After detection of input signal,each channel would be detected again.Analysis and simulation results showed that the new parallel acquisition algorithm can effectively shorten the acquisition time without increasing resources.But the new parallel acquisition algorithm de... |
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| Keywords: | direct sequence spread spectrum parallel acquisition correlation signal noise ratio |
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