Resampling and requantization of band-limited Gaussian stochastic signals with flat power spectrum

Details Resampling and requantization of band-limited Gaussian stochastic signals with flat power spectrum Resampling and requantization of band-limited Gaussian stochastic signals with flat power spectrum

2008-03-13

arxiv.org/abs/0803.1945v3

Computer Science

Information Theory

Submitted to Digital Signal Processing

Scientific paper

A theoretical analysis, aimed at characterizing the degradation induced by the resampling and requantization processes applied to band-limited Gaussian signals with flat power spectrum, available through their digitized samples, is presented. The analysis provides an efficient algorithm for computing the complete {joint} bivariate discrete probability distribution associated to the true quantized version of the Gaussian signal and to the quantity estimated after resampling and requantization of the input digitized sequence. The use of Fourier transform techniques allows deriving {approximate} analytical expressions for the quantities of interest, as well as implementing their efficient computation. Numerical experiments are found to be in good agreement with the theoretical results, and confirm the validity of the whole approach.

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