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Clock synchronization for wavelet-based multirate transmissions
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DOI：10.1109/26.848567.png)
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Abstract
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This paper deals with symbol timing recovery for multirate transmission systems employing wavelets as signaling pulses either at baseband or with linear bandpass modulation. Our analysis is twofold. First, we investigate the impact of clock errors on the bit-error rate of the optimum receiver for a wavelet-based multirate signal. Second, we consider a nondata-aided maximum-likelihood clock synchronization scheme implemented as a multiple delay-locked loop. We derive a linearized loop model and assess its performance in terms of tracking Sitter variance. The analytical results are contrasted with those obtained by simulation and with the relevant modified Cramer-Rao bound.
Keywords:
clock synchronization
multirate communications
wavelets
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