Compressed sensing with continuous parametric reconstruction

Imrich Andras, Linus Michaeli, Jan Saliga

Abstract


This work presents a novel unconventional method of signal reconstruction after compressive sensing. Instead of usual matrices, continuous models are used to describe both the sampling process and acquired signal. Reconstruction is performed by finding suitable values of model parameters in order to obtain the most probable fit. A continuous approach allows more precise modelling of physical sampling circuitry and signal reconstruction at arbitrary sampling rate. Application of this method is demonstrated using a wireless sensor network used for freshwater quality monitoring. Results show that the proposed method is more robust and offers stable performance when the samples are noisy or otherwise distorted.

Keywords


Analog-to-information conversion; compressed sensing; sparse signal; water quality monitoring; wireless sensor network;

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DOI: http://doi.org/10.11591/ijece.v11i1.pp851-862

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International Journal of Electrical and Computer Engineering (IJECE)
p-ISSN 2088-8708, e-ISSN 2722-2578