GPS Solutions

, 23:58 | Cite as

A new unambiguous tracking algorithm for sine-BOC(m, n) signals

  • Boyi Wang
  • Tian Li
  • Jiaolong WeiEmail author
  • Zuping Tang
Original Article


Binary offset carrier (BOC) modulation technology is widely used in newly developed and modernized global navigation satellite systems. BOC signal offers superior performance over conventional binary phase-shift keying signal due to its sharp auto-correlation function. However, the main drawback of BOC signal tracking is the ambiguity problem caused by the presence of multiple side-peaks in the auto-correlation function. We derive a new analytical model to solve the ambiguity issue. Based on the derived analytical model, a code tracking algorithm that completely removes all ambiguities is introduced. Theoretical analysis and simulation show that the proposed technique significantly improves the multipath mitigation performance and code tracking accuracy in thermal noise over those of existing side-peaks-cancellation techniques.


BOC GNSS Unambiguous tracking Multipath Side-peak cancellation 



This work was supported by the National Natural Science Foundation of China (Grant no. 61401171).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Electronic Information and CommunicationsHuazhong University of Science and TechnologyWuhanChina

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