High-Resolution Acquisition Methods for Wideband Communication Systems

We consider the problem of low-complexity timing synchronization in digital receivers for DS-CDMA and UWB systems operating over channels with single or multiple propagation paths. We extend some of our recent sampling results for certain classes of non-bandlimited signals and develop a method that takes advantage of transform techniques to perform propagation delay estimation from a low-dimensional subspace of a received signal, that is, by sampling below the Nyquist rate. By lowering the sampling rate we reduce computational requirements compared to existing solutions, allow for slower A/D converters and significantly reduce power consumption of digital receivers.


Published in:
IEEE Conference on Acoustics, Speech and Signal Processing, 4, 133-136
Presented at:
ICASSP 2003, Hong Kong, China, 6-10 avril 2003
Year:
2003
Keywords:
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 Record created 2005-04-18, last modified 2018-03-17

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