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Memorias de investigación
Ponencias en congresos:
Acquisition of Multiband Signals with Minimum Sub-Nyquist Sampling
Año:2012
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
It is widely known that signals with sparse spectrums may be properly acquired when using specific sub-Nyquist sampling frequencies. This alleviates the sampling requirements in advanced acquisition systems, such as the direct-sampling solution to the software-defined radio paradigm. Unfortunately, beyond the theorem of bandpass sampling, analytical expressions for these valid sub-sampling rates are unavailable. Previously, the authors derived the analytical rules which guarantee that the minimum sub-Nyquist sampling frequency avoids aliasing. However, these equations are only valid for the restricted case of evenly-spaced equal-bandwidth multichannel systems, being useless in a broader framework with arbitrary-bandwidth channels. In this work, the general dual-band case is exhaustively analyzed. Given the channel bandwidths, the spectrum parameters which assure that the minimum sub-Nyquist frequency does not give rise to aliasing may be found. For more-than-two channels, some simple guidelines are also provided. Finally, simulation examples are shown to confirm the correctness of the deduced equations.
Internacional
Si
Nombre congreso
IEEE International Symposium on Circuits and Systems (ISCAS 2012)
Tipo de participación
960
Lugar del congreso
Seoul, Korea
Revisores
Si
ISBN o ISSN
978-1-4673-0219-7
DOI
Fecha inicio congreso
20/05/2012
Fecha fin congreso
23/05/2012
Desde la página
830
Hasta la página
833
Título de las actas
IEEE Conferencie Publications
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: José María Muñoz Ferreras (Universidad de Alcalá de Henares)
  • Autor: Roberto Gómez García (Universidad de Alcalá de Henares)
  • Autor: Felix Perez Martinez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Microondas y Radar
  • Departamento: Señales, Sistemas y Radiocomunicaciones
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