Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/15036

Título:	Novel periodogram and Capon spectral analysis based on nonuniform sampling
Autor/a:	Font Segura, Josep; Vázquez Grau, Gregorio; Riba Sagarra, Jaume
Otros autores:	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:	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:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Cognitive radio -Spectral analysis -Nonuniform sampling -Ràdio cognitiva
Derechos:
Tipo de documento:	Artículo - Versión publicada Objeto de conferencia
Editor:	IEEE Press. Institute of Electrical and Electronics Engineers
Compartir:

Mostrar el registro completo del ítem