Moving target indication

About: Moving target indication is a research topic. Over the lifetime, 2653 publications have been published within this topic receiving 32435 citations.

MIMO GMTI radar with multipath clutter suppression

Abstract: This paper address ground-moving target indicator (GMTI) radar operation in the presence of strong multipath spread-Doppler clutter (SDC). Spacetime adaptive processing (STAP) for single-input-single-output (SIMO) radar is designed to mitigate direct-path SDC which leaks into the sidelobes of a moving radar platform. However, multipath SDC often returns via the receiver mainlobe and cannot be suppressed in a SIMO radar without also canceling the target. In this paper, we study multipath SDC mitigation using multiple-input-multiple-output (MIMO) GMTI radar. Clutter loci and adaptive array patterns for MIMO GMTI are presented in multipath SDC. By achieving range-dependent nulling on transmit, the effectiveness of MIMO GMTI radar at suppressing multipath SDC is shown.

Through-the-wall moving target detection and localization using sparse regularization

Abstract: In this paper, we consider moving target detection and localization inside enclosed structures for through-the-wall radar imaging and urban sensing applications. We exploit the fact that the through-the-wall scene is sparse in the Doppler domain, on account of the presence of a few moving targets in an otherwise stationary background. The sparsity property is used to achieve efficient joint range-crossrange-Doppler estimation of moving targets inside buildings using compressive sensing. We establish an appropriate signal model that permits formulation of linear modeling with sensing matrices, so as to achieve scene reconstruction via sparse regularization. Supporting simulation results show that a sizable reduction in the data volume is achieved using the proposed approach without a degradation in system performance.

Adaptive dwell timing for radar tracking

Abstract: In an air traffic control radar system, a processor is described for correlating primary target data received from a target with a target report and a target track, wherein the processor has a search acquisition time that is adapted to the distance of the target from the radar site. The search acquisition time is shorter for more distant targets. The processor can employ a shorter cycle time (time quantum) to establish a correlation between target data and target reports than would otherwise be possible with conventional fixed search acquisition times. The average total dwell time may be reduced while complying with the mandated maximum processing time for more difficult radar reports.

Modulation Jamming Method for High-Vivid False Uniformly-Moving Targets Against SAR-GMTI

Abstract: The modulation jamming method for high-vivid false uniformly-moving targets against SAR-GMTI is proposed by using the imaging characteristics of the uniformly-moving target.Key jamming parameters are determined,and the influence of reconnaissance errors on the jamming effects is analyzed.Besides,the countering performance of the proposed jamming method against GMTI is investigated by using the three-aperture interference cancelling technique.The experimental results indicate that the proposed method is effective to produce false uniformly-moving targets,through which certain ground uniformly-moving targets can be protected against SAR-GMTI.At the same time,the new method is efficient and flexible.