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A Fast Unambiguous Acquisition Algorithm for BOC-Modulated Signals

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4 Author(s)
Benedetto, F. ; Signal Process. for Telecommun. & Econ. Lab., Univ. of Roma Tre, Rome, Italy ; Giunta, G. ; Lohan, E.S. ; Renfors, M.

This paper proposes a fast unambiguous acquisition technique for binary-offset-carrier (BOC)-modulated signals. We remove the ambiguities (side peaks) of the BOC autocorrelation function (ACF), exploiting a reduced-complexity (real and symmetric) filter composed of only seven nonzero samples. The proposed scheme is applicable to both generic sine- and cosine-phased BOC signals. Theoretical and simulation results show that the proposed method removes the ambiguities in the acquisition problem without requiring an auxiliary signal in the receiver.

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Vehicular Technology, IEEE Transactions on  (Volume:62 ,  Issue: 3 )