A two-stage acquisition scheme based on multiple correlator outputs for UWB signals

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In ultra-wideband (UWB) channels, the signal energy in the acquisition receiver spreads over correlator outputs due to rich multipaths, making the output of each correlator have only a small portion of the total energy. To enhance the acquisition performance for UWB signals by exploiting the signals spread over a number of correlator outputs, this paper proposes a two-stage acquisition scheme. In the proposed scheme, decision variables are formed by combining a multiple of correlator outputs, allowing it possible to make use of the signal energy spread over the outputs jointly. Simulation results show that the proposed scheme can provide a gain of about 0.6 dB over the conventional schemes in various UWB channel environments.
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
2011-04
Language
English
Article Type
Article
Keywords

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Citation

IEICE ELECTRONICS EXPRESS, v.8, no.7, pp.436 - 442

ISSN
1349-2543
URI
http://hdl.handle.net/10203/95114
Appears in Collection
EE-Journal Papers(저널논문)
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