Doppler Spread Estimation by Subspace Tracking for OFDM Systems
classification
💻 cs.IT
math.IT
keywords
dopplerestimationspreadaccuracymaximumofdmsubspacesystems
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This paper proposes a novel maximum Doppler spread estimation algorithm for OFDM systems with the comb-type pilot pattern. By tracking the drifting delay subspace of the multipath channel, the time correlation function is measured at a high accuracy, which accordingly improves the estimation accuracy of the maximum Doppler spread considerably.
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