Skip to Main content Skip to Navigation
Theses

SYSTEMES DE NUMERISATION HAUTES PERFORMANCES
- Etude des solutions à bancs de Filtres hybrides -
- Extension des Fonctionnalités -

Abstract : Future digitization systems will have to allow wide-band, high frequency and versatile conversion. Hybrid filter banks (HFB) A/D converters systems are good candidates. They consist in analog filters (or analysis bank), A/D converters and digital filters (or synthesis bank). This work lead to new synthesis methods that take into account the analog implementation constraints. Those methods start from the know- ledge of the analysis bank and compute the corresponding synthesis bank. We show also the advantage and the capability of HFB to perform band-pass conversion. Mo- reover, HFB enable potential versatility. Indeed, the coeffcients can be easily changed by software. We obtained a method that compute digital filters so that the resolution is improved in a narrower bandwidth. Finally, we propose synthesis methods that design IIR filters instead of FIR filters. The results shows that, in some cases, HFB with IIR filters lead to better performances than HFB with FIR filters for the same complexity.
Complete list of metadatas

Cited literature [88 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00274197
Contributor : Karine El Rassi <>
Submitted on : Thursday, April 17, 2008 - 3:01:11 PM
Last modification on : Monday, December 14, 2020 - 12:28:40 PM
Long-term archiving on: : Friday, September 28, 2012 - 12:46:52 PM

Identifiers

  • HAL Id : tel-00274197, version 1

Collections

Citation

Caroline Lelandais-Perrault. SYSTEMES DE NUMERISATION HAUTES PERFORMANCES
- Etude des solutions à bancs de Filtres hybrides -
- Extension des Fonctionnalités -. Traitement du signal et de l'image [eess.SP]. Université Paris Sud - Paris XI, 2006. Français. ⟨tel-00274197⟩

Share

Metrics

Record views

282

Files downloads

288