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An Efficient Pre-Processing Scheme to Enhance Resolution in Band-Pass Signals Acquisition

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4 Author(s)
Angrisani, L. ; Dipt. di Inf. e Sist., Univ. degli Studi di Napoli Federico II, Naples, Italy ; D'Arco, M. ; Ianniello, G. ; Vadursi, M.

The paper presents a pre-processing scheme to enhance the resolution of data acquisition systems (DASs) in the presence of band-pass input signals. The proposed solution permits to acquire a seamless data stream with improved resolution and is designed to be efficient in terms of hardware requirements and processing time. In the paper, details on the designed architecture are given, along with an analytical comparison of the resolution improvement achievable with respect to existing techniques. The performance of the solution is assessed through a number of simulative and experimental tests on band-pass signals.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:61 ,  Issue: 11 )