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Proceedings Paper

Properties of the mean acquisition time for wide-bandwidth signals in dense multipath channels (Keynote Address)
Author(s): Watacharapan Suwansantisuk; Moe Z. Win; Lawrence A. Shepp
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Paper Abstract

This paper investigates important properties of acquisition receivers that employ commonly used serial-search strategies. In particular, we focus on the properties of the mean acquisition time (MAT) for wide bandwidth signals in dense multipath channels. We show that a lower bound on the MAT over all possible search strategies is the solution to an integer programming problem with a convex objective function. We also give an upper bound expression for the MAT over all possible search strategies. We demonstrate that the MAT of the fixed-step serial search (FSSS) does not depend on the location of the first resolvable path within the uncertainty region, thereby simplifying the evaluation of the MAT of the FSSS. The results in this paper can be applied to the design and analysis of fast acquisition systems in various wideband scenarios.

Paper Details

Date Published: 23 May 2005
PDF: 15 pages
Proc. SPIE 5847, Noise in Communication Systems, (23 May 2005); doi: 10.1117/12.612598
Show Author Affiliations
Watacharapan Suwansantisuk, Massachusetts Institute of Technology (United States)
Moe Z. Win, Massachusetts Institute of Technology (United States)
Lawrence A. Shepp, Rutgers Univ. (United States)


Published in SPIE Proceedings Vol. 5847:
Noise in Communication Systems
Costas N. Georghiades; Langford B. White, Editor(s)

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