Generalised two target localisation using passive monopulse radar. Issue 6 (9th May 2017)

• Record Type: Journal Article
• Authors: Jardak, Seifallah; Ahmed, Sajid; Alouini, Mohamed‐Slim
• Is Part Of: IET radar, sonar & navigation. Volume 11:Issue 6(2017)
• Page Start: 932
• Page End: 936
• Publication Date: 2017-05-09
• Subjects: passive radar -- radar tracking -- target tracking -- radar signal processing -- antenna arrays; generalised two target localisation -- passive monopulse radar -- simultaneous lobing technique -- fast target localisation purposes -- tracking purposes -- monopulse antenna boresight -- elevation angle -- antenna array -- detection performance; Signal processing -- Periodicals; Radar -- Periodicals; Sonar -- Periodicals; Electronics in navigation -- Periodicals; Navigation -- Periodicals; 621.3848
• DOI: 10.1049/iet-rsn.2016.0495
• Languages: English
• ISSNs: 1751-8784

Abstract

Abstract : The simultaneous lobing technique, also known as monopulse technique, has been widely used for fast target localisation and tracking purposes. Many works focused on accurately localising one or two targets lying within a narrow beam centred around the monopulse antenna boresight. In this study, a new approach is proposed, which uses the outputs of four antennas to rapidly localise two point targets present in the hemisphere. If both targets have the same elevation angle, the proposed scheme cannot detect them. To detect such targets, a second set of antennas is required. In this study, to detect two targets at generalised locations, the antenna array is divided into multiple overlapping sets each of four antennas. Two algorithms are proposed to combine the outputs from multiple sets and improve the detection performance. Simulation results show that the algorithm is able to localise both targets with <2° mean square error in azimuth and elevation.