Abstract
This paper presents a novel moving target deception jamming method against synthetic aperture radar (SAR)-ground moving target indication (GMTI) based on fast azimuth-domain block EM calculation. In this method, a fast electromagnetic(EM) calculation based on equivalent bistatic scattered fields is used to simulate the scattering characteristics of moving false target, which greatly improves the computational efficiency. With the azimuth-domain block implementation, the jammer’s frequency response (JFR) can be calculated by fast searching and interpolating with EM database, and the computation load is further reduced. The implementation and the performance of the proposed method are discussed. Comparing with the traditional methods based on a point model, the proposed method is able to generate more verisimilar moving false targets for different attitudes and resolutions. The simulation experiments are provided to demonstrate the validity of the proposed method.
Highlights
D UE to capability of all-weather, all-day, and highresolution imaging, synthetic aperture radar (SAR) has been a powerful technique in both civil and military field [1], [2]
In the deception jamming way [6]–[11], it can simulate the characteristics of moving target echoes so that false moving targets can be generated in SAR image
This paper presents a novel moving target deception jamming method against SAR-ground moving target indication (GMTI) based on fast azimuth-domain block electromagnetic(EM) calculation
Summary
D UE to capability of all-weather, all-day, and highresolution imaging, synthetic aperture radar (SAR) has been a powerful technique in both civil and military field [1], [2]. In the deception jamming way [6]–[11], it can simulate the characteristics of moving target echoes so that false moving targets can be generated in SAR image. The moving target deception jamming (MTDJ) methods can generate jamming signals, which can simulate the echo characteristics of the moving target through a single jammer or multiple jammers. They lead to the good performance of the deception jamming against the single-channel or multiple-channel SAR-GMTI system. This paper presents a novel moving target deception jamming method against SAR-GMTI based on fast azimuth-domain block electromagnetic(EM) calculation.
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