Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Robust SVA Method for Every Sampling Rate Condition
Año:2007
Áreas de investigación
  • Procesado y análisis de la señal
Datos
Descripción
Linear apodization, or data weighting, is the traditional procedure to improve sidelobe levels in a finite sampled signal at the expense of resolution. New apodization methods, such as spatially variant apodization (SVA), apply nonlinear filtering to the signal in order to completely remove sidelobes without any loss or resolution. However, the results are strongly influenced by signal sampling rate. Some variations which improve results have been previously published, but sidelobe cancellation gets worse since sampling frequency is not settled at Nyquist (or a multiple). This paper presents a new and efficient technique based on SVA that drastically reduces sidelobe levels for every sampling rate condition. The algorithm is, essentially, a parameter optimization of a variant filter for each pixelof the image. A one -dimensional case and a two-dimensional generalization are presented, as well as some applications to target detection capability in a synthetic aperture radar (SAR) systems.
Internacional
Si
JCR del ISI
Si
Título de la revista
IEEE T AERO ELEC SYS
ISSN
0018-9251
Factor de impacto JCR
0,938
Información de impacto
Volumen
43
DOI
Número de revista
2
Desde la página
571
Hasta la página
580
Mes
ABRIL
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Carlos Castillo Rubio
  • Autor: Sergio Llorente Romano (UPM)
  • Autor: Mateo Burgos Garcia (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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