• Title/Summary/Keyword: Mutilateration

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An Efficient Information Fusion Method for Air Surveillance Systems (항공감시시스템을 위한 효율적인 정보융합 기법)

  • Cho, Taehwan;Oh, Semyoung;Lee, Gil-Young
    • Journal of Advanced Navigation Technology
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    • v.20 no.3
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    • pp.203-209
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    • 2016
  • Among the various fields in the communications, navigation, and surveillance/air traffic management (CNS/ATM) scheme, the surveillance field, which includes an automatic dependent surveillance - broadcast (ADS-B) system and a multilateration (MLAT) system, is implemented using satellite and digital communications technology. These systems provide better performance than radar, but still incur position error. To reduce the error, we propose an efficient information fusion method called the reweighted convex combination method for ADS-B and MLAT systems. The reweighted convex combination method improves aircraft tracking performance compared to the original convex combination method by readjusting the weights given to these systems. In this paper, we prove that the reweighted convex combination method always provides better performance than the original convex combination method. Performance from the fusion of ADS-B and MLAT improves an average of 51.51% when compared to the original data.