The imaging capability of a Synthetic Aperture Radar (SAR) could be seriously limited or denied by an electromagnetic noise-like interference signal impinging on the antenna during the synthetic aperture. A Multi-channel SAR (M-SAR), exploiting an antenna nulling based Electronic Counter-Counter Measures (ECCM) technique, shall be able to cancel the effects of interferences over the collected SAR data. Since SAR systems often work with wide bandwidths to provide high resolution images, the ECCM technique must account for the presence of WB interference signal. In this paper we consider a WB antenna nulling technique based on a space-frequency adaptive nulling and we propose an integration of the WB antenna nulling scheme within the focusing algorithm for MSAR systems, thus allowing a fusion between ECCM and usual SAR processing steps.
Integrated wideband antenna nulling and focusing technique for multi-channel Synthetic Aperture Radar / Bucciarelli, Marta; Cristallini, Diego; Lombardo, Pierfrancesco; Pastina, Debora; M., Sedehi. - (2008), pp. 1-4. (Intervento presentato al convegno 2008 International Radar Symposium, IRS tenutosi a Wroclaw; Poland nel 21 May 2008 through 23 May 2008) [10.1109/irs.2008.4585749].
Integrated wideband antenna nulling and focusing technique for multi-channel Synthetic Aperture Radar
BUCCIARELLI, MARTA;CRISTALLINI, Diego;LOMBARDO, Pierfrancesco;PASTINA, Debora;
2008
Abstract
The imaging capability of a Synthetic Aperture Radar (SAR) could be seriously limited or denied by an electromagnetic noise-like interference signal impinging on the antenna during the synthetic aperture. A Multi-channel SAR (M-SAR), exploiting an antenna nulling based Electronic Counter-Counter Measures (ECCM) technique, shall be able to cancel the effects of interferences over the collected SAR data. Since SAR systems often work with wide bandwidths to provide high resolution images, the ECCM technique must account for the presence of WB interference signal. In this paper we consider a WB antenna nulling technique based on a space-frequency adaptive nulling and we propose an integration of the WB antenna nulling scheme within the focusing algorithm for MSAR systems, thus allowing a fusion between ECCM and usual SAR processing steps.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
