Frames for compressed sensing using coherence

محورهای موضوعی : Functional analysis

L. Gavruta ¹ (Politehnica University of Timisoara, Department of Mathematics, Piata Victoriei no.2, 300006 Timisoara, Romania)
G. Zamani Eskandani ² (Faculty of Sciences, Department of Mathematics, University of Tabriz, Tabriz, Iran)
P. Gavruta ³ (Politehnica University of Timisoara, Department of Mathematics, Piata Victoriei no.2, 300006 Timisoara, Romania)

تاریخ دریافت : 1393/09/19 تاریخ پذیرش : 1393/12/29 تاریخ انتشار : 1394/01/12

کلید واژه: coherence, compressed sensing, frames,

چکیده مقاله :

We give some new results on sparse signal recovery in the presence of noise, forweighted spaces. Traditionally, were used dictionaries that have the norm equal to 1, but, forrandom dictionaries this condition is rarely satisfied. Moreover, we give better estimationsthen the ones given recently by Cai, Wang and Xu.

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