Sensitivity of hybrid filter banks A/D converters to analog realization errors and finite word length

Abstract : This paper studies the sensitivity of hybrid filter banks (HFB) to analog inaccuracies and finite word implementation. It is shown that very small errors affecting very simple analog structures have a dramatic influence on the performances of the HFB. The influence of the quantization of digital filter coefficients is also studied. A theoretical limit for the error introduced by the quantization of digital filter coefficients is derived.
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Tudor Petrescu, Jacques Oksman. Sensitivity of hybrid filter banks A/D converters to analog realization errors and finite word length. IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse, France. pp. 361-364, ⟨10.1109/ICASSP.2006.1660665⟩. ⟨hal-00261350⟩

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