TY - JFULL AU - Saeed Mian Qaisar and Laurent Fesquet and Marc Renaudin PY - 2009/12/ TI - Signal Driven Sampling and Filtering a Promising Approach for Time Varying Signals Processing T2 - International Journal of Electronics and Communication Engineering SP - 2058 EP - 2067 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/8983 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 35, 2009 N2 - 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. ER -