MIMO radar capability on powerful jammers suppression

Abstract

The problem of jammers suppression in colocated multipleinput multiple-output (MIMO) radar is considered. We resort to reduced dimension (RD) beamspace designs with robustness/adaptiveness to achieve the goal of efficient jammers suppression. Specifically, our RD beamspace techniques aim at designing optimal beamspace matrices based on reasonable tradeoffs between the desired in-sector source distortion and the powerful jammer (possibly in-sector) attenuation when conducting the jammers suppression. These designs are cast as convex optimization problems which are derived using secondorder cone programming. Meanwhile, we study the MUSICbased direction-of-arrival estimation performance of the proposed beamspace designs by comparing to the conventional algorithms. Moreover, we demonstrate that the capability of efficient powerful in-sector jammers suppression using these designs is unique in MIMO radar.

Multi-Stage Antenna Selection for Adaptive Beamforming in MIMO Radar

“…Additionally, we increase the number of jammers to 5 and the clutter rank to 10. The five jamming signals have azimuth angles θ j = [0, 5,15,25,30] degrees and powers of 13dBW, and the total clutter-to-noise ratio is set to 13 dB. The SOI is assumed to have a power of 20dBW at the reciever and its azimuth is varied between 0 • to 30 • .…”

MIMO radars and their conventional equivalents - an update

“…It has been claimed that MIMO can handle hot clutter (which is barrage noise jammer signals received after reflection from the ground) whereas conventional arrays cannot [26,27]. This is not true, conventional arrays can handle hot clutter just as well as MIMO arrays can [3].…”

Adaptive Jamming Waveform Design for Distributed Multiple‐Radar Architectures Based on Low Probability of Intercept

“…For instance, in Song, Willett, and Zhou (), it is shown that a distributed MIMO radar system can counter the deceptive jamming owing to the spatial diversity, where the antijamming capability is a feature of MIMO radar. Li et al () investigate the problem of jammers suppression in colocated MIMO radar, which is solved by utilizing the reduced dimension beamspace designs with adaptiveness to suppress jammers. Further, the robust beamforming for MIMO radar in the presence of powerful jamming signals is studied in Li et al (), and two minimum variance distortionless response type beamformers are proposed.…”