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Rapid Hybrid Acquisition of Ultra-Wideband Signals

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Abstract

Impulsive ultra-wideband (UWB) radio provides many promising features for wireless communications in a dense multipath environment. However, these features are largely the result of the enormous effective processing gain, which can make acquisition difficult at the receiver. In this paper, a recently developed theory of minimum complexity sequential detection is applied to the hybrid acquisition problem. As in previous hybrid schemes, a number of potential timing phases are checked as a group; however, a phase is disregarded as soon as it appears unlikely rather than waiting for a “winner” to be chosen from the group. Another phase then replaces the disregarded one. Analysis and simulation results indicate that the proposed scheme can improve average acquisition times for highly spread systems operating over either additive white Gaussian noise (AWGN) or multipath fading channels.

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Authors and Affiliations

  1. ECE Department, University of Massachusetts, 100 Natural Resources Rd, Amherst, MA, 01003-9292

    Honglei Zhang & Dennis L. Goeckel

  2. ECE Department, Louisiana State University, Baton Rouge, LA, 70803

    Shuangqing Wei

  3. LIDS, MIT, Cambridge, MA, 02139

    Moe Z. Win

Authors
  1. Honglei Zhang
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  2. Dennis L. Goeckel
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  3. Shuangqing Wei
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  4. Moe Z. Win
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Corresponding author

Correspondence to Honglei Zhang.

Additional information

This paper is based in part upon work supported by the Army Research Office under Contract DAAD10-01-1-0477 and employed equipment obtained under National Science Foundation Grant EIA-0080119.

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Zhang, H., Goeckel, D.L., Wei, S. et al. Rapid Hybrid Acquisition of Ultra-Wideband Signals. J VLSI Sign Process Syst Sign Image Video Technol 43, 7–23 (2006). https://doi.org/10.1007/s11265-006-7277-z

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  • DOI: https://doi.org/10.1007/s11265-006-7277-z

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