Correctly Sizing FIR Filter Architecture in the Framework of Non-uniform Sampling

Jean Simatic (1) , Laurent Fesquet (1) , Brigitte Bidégaray-Fesquet (2)

1 TIMA - Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés
2 EDP - Equations aux Dérivées Partielles

Based on non-uniform sampling techniques and event-driven logic, signal processing is evolving to integrate new demands such as power consumption. As power is mainly connected to the processing activity and data volume, the level-crossing sampling scheme offers a simple way to reduce data volume and consequently processing activity. Nevertheless, these good properties could be constraining for the designers because of the non-predictable sample number that can be involved in the processing. In this paper, we target a FIR filter architecture and show how to correctly size its input shift-register. This paper shows a strategy to choose the shift-register depth but also a way to dynamically adapt the computation to an heterogeneous data flow.

Domaines: Micro et nanotechnologies/Microélectronique

Jean Simatic, Laurent Fesquet, Brigitte Bidégaray-Fesquet. Correctly Sizing FIR Filter Architecture in the Framework of Non-uniform Sampling. 11th International Conference on Sampling Theory and Applications (SampTA'15), May 2015, Washington, DC, United States. pp.269-273, ⟨10.1109/SAMPTA.2015.7148894⟩. ⟨hal-01187290⟩