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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Online Hop Timing Detection and Frequency Estimation of Multiple FH Signals

  • Sha, Zhi-Chao (College of Electronic Science and Engineering, National University of Defense Technology) ;
  • Liu, Zhang-Meng (College of Electronic Science and Engineering, National University of Defense Technology) ;
  • Huang, Zhi-Tao (College of Electronic Science and Engineering, National University of Defense Technology) ;
  • Zhou, Yi-Yu (College of Electronic Science and Engineering, National University of Defense Technology)
  • Received : 2013.11.16
  • Accepted : 2013.02.02
  • Published : 2013.10.31
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Abstract

This paper addresses the problem of online hop timing detection and frequency estimation of multiple frequency-hopping (FH) signals with antenna arrays. The problem is deemed as a dynamic one, as no information about the hop timing, pattern, or rate is known in advance, and the hop rate may change during the observation time. The technique of particle filtering is introduced to solve this dynamic problem, and real-time frequency and direction of arrival estimates of the FH signals can be obtained directly, while the hop timing is detected online according to the temporal autoregressive moving average process. The problem of network sorting is also addressed in this paper. Numerical examples are carried out to show the performance of the proposed method.

Keywords

References

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