Target Localization With Jammer Removal Using Frequency Diverse Array

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

21 Scopus Citations
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Detail(s)

Original languageEnglish
Article number9169831
Pages (from-to)11685-11696
Journal / PublicationIEEE Transactions on Vehicular Technology
Volume69
Issue number10
Online published17 Aug 2020
Publication statusPublished - Oct 2020

Abstract

A foremost task in frequency diverse array multiple-input multiple-output (FDA-MIMO) radar is to efficiently obtain the target signal in the presence of interferences. In this paper, we employ a novel 'low-rank + low-rank + sparse' decomposition model to extract the low-rank desired signal and suppress the jamming signals from both barrage and burst jammers. In the literature, the barrage jamming signals, which are intentionally interfered by enemy jammer radar, are usually assumed Gaussian distributed. However, such assumption is oversimplified to hold in practice as the interferences often exhibit non-Gaussian properties. Those non-Gaussian jamming signals, known as impulsive noise or burst jamming, are involuntarily deviated from friendly radar or other working radio equipment including amplifier saturation and sensor failures, thunderstorms and man-made noise. The performance of the existing estimators, relied crucially on the Gaussian noise assumption, may degrade substantially since the probability density function (PDF) of burst jamming has heavier tails that exceed a few standard deviations than the Gaussian distribution. To capture a more general signal model with burst jamming in practice, both barrage jamming and burst jamming are included and a two-step 'Go Decomposition' (GoDec) method via alternating minimization is devised for such mixed jamming signal model, where the a priori rank information is exploited to suppress these two kinds of jammers and extract the desired target. Simulation results verify the robust performance of the devised scheme.

Research Area(s)

  • frequency diverse array (FDA), low-rank matrix approximation, mixed jamming signals, multiple-input multiple-output (MIMO), Target localization