Title :
Anti-jamming Capabilities of UWB-OFDM SAR
Author :
Hossain, Md Anowar ; Elshafiey, Ibrahim ; Alkanhal, Majeed A. ; Mabrouk, Ahmed
Author_Institution :
Electr. Eng. Dept., King Saud Univ., Riyadh, Saudi Arabia
Abstract :
A high resolution potentially jamming-resistant Synthetic Aperture Radar (SAR) system is presented based on UWB-OFDM architecture. SAR images are reconstructed for Automatic Target Recognition (ATR) in jamming scenarios and in friendly environment based on Range-Doppler Algorithm (RDA). Suitable waveforms to achieve anti-jamming capabilities in case of hostile environment and high resolution image in case of friendly environment are proposed and tested for point scatterer as well as for full 2-D SAR image reconstruction. The analysis showed that UWB-OFDM SAR provides anti-jamming capabilities through pulse diversity in addition to having a potential to produce high resolution target images in friendly environment. The utilization of UWB- OFDM signal for SAR system will be extremely applicable for high resolution image data collection for civilian purposes while providing significant anti-jamming capabilities for military purposes.
Keywords :
OFDM modulation; image recognition; image reconstruction; image resolution; radar imaging; radar target recognition; synthetic aperture radar; ultra wideband radar; ATR; RDA; UWB-OFDM SAR; antijamming capabilities; automatic target recognition; civilian purposes; full-2D SAR image reconstruction; high-resolution image data collection; high-resolution jamming-resistant SAR system; military purposes; point scatterer; pulse diversity; range-Doppler algorithm; synthetic aperture radar system; Image reconstruction; Image resolution; Jamming; OFDM; Radar imaging; Signal resolution; Anti-jamming; Field Programmable Gate Array (FPGA); High Resolution (HR); Orthogonal Frequency Division Multiplexing (OFDM); Synthetic Aperture RADAR (SAR);
Conference_Titel :
Radar Conference (EuRAD), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1156-5
