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Acquisition of direct-sequence transmitted reference ultra-wideband signals

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3 Author(s)
Aedudodla, S.R. ; Dept. of Electr. & Comput. Eng., Univ. of Florida, Gainesville, FL, USA ; Vijayakumaran, S. ; Wong, T.F.

In this paper, we investigate the timing acquisition problem for transmitted reference (TR) ultra-wideband systems employing direct-sequence (DS) spreading. We show that a two-level DS signaling helps in achieving good acquisition performance. We propose a two-stage acquisition scheme which exploits the TR signal structure to achieve a significant improvement in the mean detection time performance when compared with a conventional single-stage acquisition scheme.

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Selected Areas in Communications, IEEE Journal on  (Volume:24 ,  Issue: 4 )