Frames for compressed sensing using coherence

الموضوعات :

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)

تاريخ الإرسال : 18 الأربعاء , صفر, 1436 تاريخ التأكيد : 29 الجمعة , جمادى الأولى, 1436 تاريخ الإصدار : 12 الأربعاء , جمادى الثانية, 1436

الکلمات المفتاحية: coherence, compressed sensing, frames,

ملخص المقالة :

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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