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A No-Ambiguity Acquisition Algorithm Based on Correlation Shift for BOC (N, N)

  • Xiyan Sun
  • Fang Hao
  • Yuanfa JiEmail author
  • Suqing Yan
  • Qinwen Miao
  • Qiang Fu
Chapter
Part of the Studies in Computational Intelligence book series (SCI, volume 810)

Abstract

In the course of GPS modernization, Binary Offset Carrier (BOC) modulation technology is adopted to realize rational utilization of frequency, to avoid mutual interference between navigation signal frequency bands. Due to the multiple peaks of the auto-correlation function (ACF) of BOC modulated signal, an acquisition algorithm is proposed in this paper. This new method analyzed sub-correlation function of ACF, then, in the process of local design, it is designed one sub-signal and half-chip-shift sub-signal. It can achieve the homologous sub-correlation function of ACF by respectively correlating two local signals and received signal. The complexity of the algorithm as well as its detection probability based on the constant false alarm rate is analyzed. Simulations show that the proposed method can effectively solve the problem of ambiguous acquisition.

Keywords

BOC Sub-correlation Unambiguity Correlation-shift Side-peak cancellation 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (61561016, 11603041), Guangxi Information Science Experiment Center funded project, Department of Science and Technology of Guangxi Zhuang Autonomous Region (AC16380014, AA17202048, AA17202033).

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Xiyan Sun
    • 1
  • Fang Hao
    • 1
  • Yuanfa Ji
    • 1
    Email author
  • Suqing Yan
    • 1
  • Qinwen Miao
    • 1
  • Qiang Fu
    • 1
  1. 1.Guangxi Key Laboratory of Precision Navigation Technology and ApplicationGuilin University of Electronic TechnologyGuilinChina

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