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Memorias de investigación
Ponencias en congresos:
Novel method to improve the signal to noise ratio in the far-field results obtained from planar near field measurements
Año:2010
Áreas de investigación
  • Telecomunicación
Datos
Descripción
A method to reduce the noise power in far-field pattern without modifying the desired signal is proposed. Therefore, an important signal-to-noise ratio improvement may be achieved. The method is used when the antenna measurement is performed in planar nearfield, where the recorded data are assumed to be corrupted with white Gaussian and space-stationary noise, because of the receiver additive noise. Back-propagating the measured field from the scan plane to the antenna under test (AUT) plane, the noise remains white Gaussian and space-stationary, whereas the desired field is theoretically concentrated in the aperture antenna. Thanks to this fact, a spatial filtering may be applied, cancelling the field which is located out of the AUT dimensions and which is only composed by noise. Next, a planar field to far-field transformation is carried out, achieving a great improvement compared to the pattern obtained directly from the measurement. To verify the effectiveness of the method, two examples will be presented using both simulated and measured near-field data.
Internacional
Si
Nombre congreso
Antenna Measurement Techniques Association Europe (AMTA) 2010
Tipo de participación
960
Lugar del congreso
Atlanta, Georgia, EEUU
Revisores
Si
ISBN o ISSN
DOI
Fecha inicio congreso
31/10/2010
Fecha fin congreso
04/10/2010
Desde la página
388
Hasta la página
393
Título de las actas
AMTA Proceedings
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Manuel Sierra Castañer (UPM)
  • Autor: Jose Luis Besada Sanmartin (UPM)
  • Autor: Francisco José Cano Facila (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Radiación
  • Departamento: Señales, Sistemas y Radiocomunicaciones
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