DoA Estimation of Line of Sight Signal in Multipath Channel for GNSS Receiver

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  • KIM Sunwoo
    Dept. of Electronics, Computer and Communication Engineering, Hanyang University
  • JO Byeong-Chan
    Dept. of Electronics, Computer and Communication Engineering, Hanyang University
  • LEE Sanguk
    Satellite Control & Navigation Team, Electronics and Telecommunications Research Institute

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Abstract

The GNSS receivers suffer from the multipath interference which is highly correlated with the line of sight (LoS) signal. Such interference results in tracking and ranging errors. In this paper, we propose a novel algorithm that can estimate the direction of arrival (DoA) of the LoS signal in the presence of highly correlated multipath interference. The proposed algorithm combines the matching pursuits algorithm for multipath estimation and the minimum norm algorithm for DoA estimation. An efficient combination of two algorithms yields reliable estimates of the DoA of LoS signal as demonstrated by computer simulations.

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