• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Navigation >Neumann-Hoffman Code Evasion and Stripping Method For BeiDou Software-defined Receiver
【24h】

Neumann-Hoffman Code Evasion and Stripping Method For BeiDou Software-defined Receiver

机译：北斗软件定义接收机的Neumann-Hoffman码逃避和剥离方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The acquisition and tracking strategies of the BeiDou navigation satellite signals are affected by the modulation of Neumann-Hoffman code (NH code), which increases the complexity of receiver baseband signal processing. Based on the analysis of probability statistics of the NH code, a special sequence of incoming signals is proposed to evade the bit transitions caused by the NH code, and an NH Code Evasion and Stripping method (NCES) based on the NH-premodulated code is proposed. The NCES can be applied in both 20-bit NH code and 10-bit NH code. The fine acquisition eliminates the impact of NH code on the traditional tracking loop. These methods were verified with a BeiDou PC-based software-defined receiver using the actual sampled signals. Compared with other acquisition schemes which try to determine or ignore the NH code phase, the NCES needs fewer incoming signals and the actual runtime is greatly reduced without sacrificing much time to search in the secondary code dimension, and the success rate of acquisition is effectively improved. An extension of Fast Fourier Transform (FFT)-based parallel code-phase search acquisition gives the NCES an advantage in engineering applications.
机译：北斗导航卫星信号的获取和跟踪策略受Neumann-Hoffman码（NH码）的调制的影响，这增加了接收机基带信号处理的复杂性。在分析NH码概率统计的基础上，提出了一种特殊的输入信号序列，以规避由NH码引起的比特跳变，提出了一种基于NH预调制码的NH Code逃避和剥离方法（NCES）。建议。 NCES可以应用于20位NH代码和10位NH代码。精细的采集消除了NH代码对传统跟踪循环的影响。这些方法已通过北斗基于PC的软件定义的接收器使用实际采样信号进行了验证。与其他尝试确定或忽略NH码相位的采集方案相比，NCES所需的输入信号更少，并且在不牺牲二级码搜索时间的情况下，大大减少了实际运行时间，有效提高了采集成功率。基于快速傅里叶变换（FFT）的并行代码相位搜索捕获的扩展使NCES在工程应用中具有优势。

著录项

  • 来源
    《The Journal of Navigation》 |2017年第1期|101-119|共19页
  • 作者

    Meng Qian; Liu Jian-ye; Zeng Qing-hua; Feng Shao-jun; Chen Rui-zhi;

  • 作者单位

    Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nav Res Ctr, Nanjing, Jiangsu, Peoples R China|Satellite Commun & Nav Collaborat Innovat Ctr, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nav Res Ctr, Nanjing, Jiangsu, Peoples R China|Satellite Commun & Nav Collaborat Innovat Ctr, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nav Res Ctr, Nanjing, Jiangsu, Peoples R China|Satellite Commun & Nav Collaborat Innovat Ctr, Nanjing, Jiangsu, Peoples R China|Texas A&M Univ Corpus Christi, Conrad Blucher Inst Surveying & Sci, Corpus Christi, TX 78412 USA;

    Imperial Coll London, Dept Civil & Environm Engn, Ctr Transport Studies, London, England;

    Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Neumann-Hoffman Code; BeiDou; Software-defined receiver; Evasion;

    机译：Neumann-Hoffman码;北斗;软件定义的接收器;规避;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号