Títol:
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Novel periodogram and Capon spectral analysis based on nonuniform sampling
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Autor/a:
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Font Segura, Josep; Vázquez Grau, Gregorio; Riba Sagarra, Jaume
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
Abstract:
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The spectrum analysis problem based on the periodogram and Capon estimates from a nonuniformly sampled signal is addressed. The nonuniform sampling process is cast
as a linear projection matrix which encompasses several recent sampling strategies such as compressive sampling. A rank-1 correlation-matching approach is proposed to derive a general filter-bank framework that allows the formulation of the nonuniform periodogram and Capon estimates as particular cases. The performance of the novel periodogram and Capon estimates is
analyzed in a cognitive radio scenario where the primary system is a multiband signal with sparse spectrum. Both theoretical and
numerical results show that the denoising process required by correlation-matching plays an important role in spectral analysis
based on nonuniform sampling. |
Abstract:
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Peer Reviewed |
Matèries:
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Cognitive radio -Spectral analysis -Nonuniform sampling -Ràdio cognitiva |
Drets:
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Tipus de document:
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Article - Versió publicada Objecte de conferència |
Publicat per:
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IEEE Press. Institute of Electrical and Electronics Engineers
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