Review on Anti-Jamming Technology of Airborne/Space-Based SAR
Synthetic aperture radar(SAR)is one of the significant achievements in the development of modern radar technology,with the characteristics of all-weather,all-day and high resolution,which is widely applied to airborne and space-based platforms.The electromagnetic environment of modern battlefield is becoming increasingly deteriora-ting,and electronic warfare equipment can generate high-intensity and targeted jamming in multiple dimensions,greatly restricting the effectiveness of SAR operations.How to improve the anti-jamming ability of SAR has become a hotspot in domestic and international researches.The anti-jamming methods in space domain,time domain,frequency domain,energy domain,polarization domain,and data processing domain based on signal transmission and reception are mainly studied in this paper.The advantages and disadvantages of conventional anti-jamming in SAR are discussed,and the implementation effects of common anti-jamming methods are illustrated by combing simulation and experimental data.Finally,the development trend of SAR is analyzed,providing reference for future relevant technology research.
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