A dual-polarimetric model to exploit X-band COSMO-SkyMed (CSK) dual-polarimetric PingPong mode Synthetic Aperture Radar (SAR) data for metallic target observation purposes is first developed. The model relates the correlation between the co-polarized channels, in case of sea surface with and without metallic targets, to the time offset between bursts related to the HH and VV polarimetric channels. Following this theoretical rationale, a Constant False Alarm Rate (CFAR) approach is implemented to first exploit CSK PingPong full-resolution SAR data for target observation purposes. Experiments undertaken over a large data set of COSMO-SkyMed Single Look Complex Slant (SCS) PingPong HH/VV SAR data demonstrate the physical soundness of the approach and its effectiveness from an operational viewpoint. A whole CSK SAR scene is processed in about 10s. Further the dual-polarization approach is also compared with a conventional single-polarization CFAR one and it is shown to perform best.
On the COSMO-SkyMed PingPong mode to observe metallic targets at sea
NUNZIATA, FERDINANDO;MIGLIACCIO, Maurizio
2013-01-01
Abstract
A dual-polarimetric model to exploit X-band COSMO-SkyMed (CSK) dual-polarimetric PingPong mode Synthetic Aperture Radar (SAR) data for metallic target observation purposes is first developed. The model relates the correlation between the co-polarized channels, in case of sea surface with and without metallic targets, to the time offset between bursts related to the HH and VV polarimetric channels. Following this theoretical rationale, a Constant False Alarm Rate (CFAR) approach is implemented to first exploit CSK PingPong full-resolution SAR data for target observation purposes. Experiments undertaken over a large data set of COSMO-SkyMed Single Look Complex Slant (SCS) PingPong HH/VV SAR data demonstrate the physical soundness of the approach and its effectiveness from an operational viewpoint. A whole CSK SAR scene is processed in about 10s. Further the dual-polarization approach is also compared with a conventional single-polarization CFAR one and it is shown to perform best.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
