Beamforming in MIMO Radar using Coprime Array

Priyadarsini, Minerva; Srinivasarao, C.

doi:10.1109/iementech.2018.8465338

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…The digital beam formation adjusts the weighting coefficient of each array according to certain criteria, so as to ensure the beam direction, so that the radar can set the zero point in the specified direction of the antenna pattern, and suppress the jamming signal in the process. In recent years, the researches on MVDR algorithm has been more abundant, such as the application of SAR [36], [37], spatial filtering [38]- [40], and estimation of beam arrival direction [41]. The MVDR algorithm is based on the principle of maximum output signal-to-noise ratio.…”

Section: Jamming Signal Suppressionmentioning

confidence: 99%

An Antideceptive Jamming Method for Multistatic Synthetic Aperture Radar Based on Collaborative Localization and Spatial Suppression

Wang

Pei

et al. 2020

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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In recent years, the research of multistatic synthetic aperture radar (SAR) has become a hot spot because of its great potentials in military and civil applications. However, it is inevitably disturbed by electronic countermeasures. In the multistatic SAR image, the false target caused by transmitting deceptive jamming leads to misjudgment of the image information. In this article, a new antideceptive jamming method for multistatic SAR is proposed. This method can locate the deceptive jammer and effectively suppress it. First of all, the echo model of multistatic SAR in the jamming environment is set up. Based on this model, the relationship expression for the location of jammer is derived. Then, we use the maximally stable extremal region method and the Euclideandistance-based method to detect and identify false target in the multistatic SAR image. By using the location information of false target, receivers, and transmitters, the expression of the jammer localization is solved to locate the jammer. Finally, the minimum variance distortionless response beamforming method and image mosaic method are used to effectively suppress the jamming. The simulation results show that the method is effective.

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