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Novel partial correlation method algorithm for acquisition of GNSS tiered signals

机译：用于获取GNSS分层信号的新型相关方法算法

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摘要

This paper presents a new modified Single Block Zero-Padding (mSBZP) Partial Correlation Method (PCM) Parallel Code Search (PCS) algorithm for effective acquisition of weak GNSS tiered signal using coherent processing of its secondary code (SC) component. Two problems are discussed: acquisition of primary codes with a longer period using FFT blocks of limited length, and the utilization of PCS in the presence of SC bit transition. The PCM and SC bit transition forms parasitic fragments in the Cross-Ambiguity-Function (CAF) to devaluate signal detection performance. A novel analysis of this mechanism and its impact is presented. A novel mSBZP-PCM-PCS algorithm is proposed, which does not degrade the CAF. Then, the algorithm is combined with SC bit transition removal schema and sequential search to construct an estimator for weak tiered signal acquisition. The performance of the method is demonstrated by analysis and computer simulation using Galileo E1C and GPS L1C-P signals.
机译：本文介绍了一种新的修改的单块零填充（MSBZP）部分相关方法（PCM）并行代码搜索（PCS）算法，用于使用辅助处理其次要代码（SC）组件的相干处理进行弱GNSS分层信号。讨论了两个问题：使用具有有限长度的FFT块的较长时段获取主要代码，以及在SC位转换的情况下使用PC。 PCM和SC位转换在交叉模糊 - 函数（CAF）中形成寄生片片段以贬值信号检测性能。提出了对这种机制及其影响的新颖分析。提出了一种新颖的MSBZP-PCM-PCS算法，不会降低CAF。然后，该算法与SC比特转换去除模式和顺序搜索组合以构建弱分层信号采集的估计器。通过使用Galileo E1C和GPS L1C-P信号进行分析和计算机仿真来证明该方法的性能。

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  • 来源
    《Navigation》 |2020年第4期|745-762|共18页
  • 作者

    Svaton Jiri; Vejrazka Frantisek; Kubalik Pavel; Schmidt Jan; Borecky Jaroslav;

  • 作者单位

    Czech Tech Univ Dept Radio Engn Fac Elect Engn Tech 2 Prague 16000 Czech Republic;

    Czech Tech Univ Dept Radio Engn Fac Elect Engn Tech 2 Prague 16000 Czech Republic;

    Czech Tech Univ Fac Informat Technol Dept Digital Design Thakurova 1 Prague 16000 Czech Republic;

    Czech Tech Univ Fac Informat Technol Dept Digital Design Thakurova 1 Prague 16000 Czech Republic;

    Czech Tech Univ Fac Informat Technol Dept Digital Design Thakurova 1 Prague 16000 Czech Republic;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Parallel code search; Partial correlation; Single block zero-padding; Secondary code;

    机译：并行代码搜索;部分相关;单块零填充;辅助代码;

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