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Article Dans Une Revue International Journal of Signal Processing Année : 2009

Signal Driven Sampling and Filtering : A Promising Approach for Time Varying Signals Processing

Résumé

The mobile systems are powered by batteries. Reducing the system power consumption is a key to increase its autonomy. It is known that mostly the systems are dealing with time varying signals. Thus, we aim to achieve power efficiency by smartly adapting the system processing activity in accordance with the input signal local characteristics. It is done by completely rethinking the processing chain, by adopting signal driven sampling and processing. In this context, a signal driven filtering technique, based on the level crossing sampling is devised. It adapts the sampling frequency and the filter order by analysing the input signal local variations. Thus, it correlates the processing activity with the signal variations. It leads towards a drastic computational gain of the proposed technique compared to the classical one.
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Dates et versions

hal-00378813 , version 1 (27-04-2009)

Identifiants

  • HAL Id : hal-00378813 , version 1

Citer

S.-M. Qaisar, Laurent Fesquet, Marc Renaudin. Signal Driven Sampling and Filtering : A Promising Approach for Time Varying Signals Processing. International Journal of Signal Processing, 2009, 5 (3), pp.189-197. ⟨hal-00378813⟩

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