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Alias-free sampling: An alternative conceptualization and its applications

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1 Author(s)

A new concept of alias-free sampling of continuous-time processes X = { X(t), -\infty < t \infty } is introduced. The new concept is shown to be distinct from the traditional concept [1]-[3]. various criteria for a given sampling scheme {t_{n}} to be alias-free in the new sense are developed. The relationship of the new definition to the question of estimating the spectral density function \Phi (\lambda ) of the continuous-time process X from its samples {X(t_{t})} is discussed.

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IEEE Transactions on Information Theory  (Volume:24 ,  Issue: 3 )