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An Unambiguous Tracking Method Based on Pseudo Correlation Function for AltBOC(15,10) Signal

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Abstract

The Galileo E5 or COMPASS B2 signal is the most precision civil and most challenging navigation signal which will be available in the near future for regular navigation. The excellent performance of this signal was reached by Alternative Binary Offset Carrier (AltBOC) modulation, which is specially designed for high precision range measurement and which is featured by extremely wide bandwidth. However, this modulation presents some drawbacks. The most severe one is the ambiguity problem in AltBOC signal acquisition and tracking, which introduces a large bias in the pseudo-range measurement. In order to solve this problem, an unambiguous tracking method based on a pseudo correlation function for AltBOC(15,10) modulation signal is proposed in this paper. It employs two local signals and a novel combination function, which completely removes side peaks from the correlation function while keeping the sharp main peak. Impacts of multipath on the proposed method are also investigated. Simulation results demonstrate that the proposed method is totally unambiguous while exhibiting an average multipath performance with respect to the existing unambiguous tracking methods.

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Abbreviations

GNSS:

Global navigation satellite systems

AltBOC:

Alternative binary offset carrier

PCF:

Pseudo correlation function

ACF:

Autocorrelation function

CCF:

Cross-correlation function

PSD:

Power spectral density

SC:

Side-peaks cancellation

NEML:

Narrow early-minus-late

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Authors and Affiliations

  1. Xi’an Research Institute of High Technology, Xi’an, 710025, China

    Huihua Chen, Rong Wang, Weimin Jia, Jiawei Ren & Minli Yao

  2. Department of Automation, Tsinghua University, Beijing, 100084, China

    Rong Wang

Authors
  1. Huihua Chen
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  2. Rong Wang
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  3. Weimin Jia
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  4. Jiawei Ren
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  5. Minli Yao
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Correspondence to Huihua Chen.

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Chen, H., Wang, R., Jia, W. et al. An Unambiguous Tracking Method Based on Pseudo Correlation Function for AltBOC(15,10) Signal. Wireless Pers Commun 69, 1347–1364 (2013). https://doi.org/10.1007/s11277-012-0637-z

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