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Fusion of Algorithms for Compressed Sensing
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori.ORCID-id: 0000-0003-2638-6047
2013 (Engelska)Ingår i: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 61, nr 14, s. 3699-3704Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

For compressed sensing (CS), we develop a new scheme inspired by data fusion principles. In the proposed fusion based scheme, several CS reconstruction algorithms participate and they are executed in parallel, independently. The final estimate of the underlying sparse signal is derived by fusing the estimates obtained from the participating algorithms. We theoretically analyze this fusion based scheme and derive sufficient conditions for achieving a better reconstruction performance than any participating algorithm. Through simulations, we show that the proposed scheme has two specific advantages: 1) it provides good performance in a low dimensional measurement regime, and 2) it can deal with different statistical natures of the underlying sparse signals. The experimental results on real ECG signals shows that the proposed scheme demands fewer CS measurements for an approximate sparse signal reconstruction.

Ort, förlag, år, upplaga, sidor
2013. Vol. 61, nr 14, s. 3699-3704
Nyckelord [en]
Compressed sensing, data fusion, sparse signal reconstruction
Nationell ämneskategori
Signalbehandling
Identifikatorer
URN: urn:nbn:se:kth:diva-125859DOI: 10.1109/TSP.2013.2259821ISI: 000321152800017Scopus ID: 2-s2.0-84880064779OAI: oai:DiVA.org:kth-125859DiVA, id: diva2:641254
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QC 20130816

Tillgänglig från: 2013-08-16 Skapad: 2013-08-15 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

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Chatterjee, Saikat

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