Approximate Evaluation of an Expression Arising in the Theory of Time-Delay Estimation

by Peter Swerling

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An extension to P-1185 in which a formula was derived for the greatest lower bound of the variance of unbiased estimates of the time delay between transmission and reception of a waveform, when the received waveform is observed in a background of additive white Gaussian noise. The present paper evaluates this expression approximately for a class of waveforms.

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