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DS/FH混合扩频系统快速捕获新算法

文霄杰 张彦仲 邵定蓉 李署坚

文霄杰, 张彦仲, 邵定蓉, 等 . DS/FH混合扩频系统快速捕获新算法[J]. 北京航空航天大学学报, 2011, 37(12): 1504-1509.
引用本文: 文霄杰, 张彦仲, 邵定蓉, 等 . DS/FH混合扩频系统快速捕获新算法[J]. 北京航空航天大学学报, 2011, 37(12): 1504-1509.
Wen Xiaojie, Zhang Yanzhong, Shao Dingrong, et al. Novel rapid acquisition algorithm for hybrid DS/FH spread spectrum systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(12): 1504-1509. (in Chinese)
Citation: Wen Xiaojie, Zhang Yanzhong, Shao Dingrong, et al. Novel rapid acquisition algorithm for hybrid DS/FH spread spectrum systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(12): 1504-1509. (in Chinese)

DS/FH混合扩频系统快速捕获新算法

详细信息
    作者简介:

    文霄杰(1983-),女,湖北天门人,博士生,wenxiaojie@ee.buaa.edu.cn.

  • 中图分类号: TN 914.4

Novel rapid acquisition algorithm for hybrid DS/FH spread spectrum systems

  • 摘要: 针对DS/FH (Direct Sequence/Frequency Hopping)混合扩频系统捕获时间长的难题,提出了一种基于可变跳频速率的捕获算法.对搜索过程中频率未对准状态进行快速出局处理,降低平均捕获时间;对准状态则通过较长时间来验证以降低虚警概率.通过状态流图,导出了新算法在高斯白噪声信道和典型干扰环境下的平均捕获时间计算公式、检测概率、漏警概率和虚警概率.仿真结果表明,在高斯白噪声环境下,选取合适的门限,平均捕获时间可减少为传统快速扫描法的1/4;在干扰环境下,新算法鲁棒性优于后者.

     

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出版历程
  • 收稿日期:  2010-07-21
  • 刊出日期:  2012-12-30

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