Improving MIMO radar's performance through receivers' positioning. Issue 5 (1st July 2017)

• Record Type: Journal Article
• Authors: Chitgarha, Mohammad Mahdi; Radmard, Mojtaba; Nazari Majd, Mohammad; Nayebi, Mohammad Mahdi
• Is Part Of: IET signal processing. Volume 11:Issue 5(2017)
• Page Start: 622
• Page End: 630
• Publication Date: 2017-07-01
• Subjects: MIMO radar -- radar antennas -- receiving antennas -- antenna arrays -- probability -- radar detection; MIMO radar performance improvement -- multiple‐input‐multiple‐output radar performance improvement -- receivers positioning -- receive antennas -- MIMO detector -- MIMO ambiguity function -- overall detection probability -- widely separated antennas; Signal processing -- Periodicals; 621.3822
• DOI: 10.1049/iet-spr.2016.0556
• Languages: English
• ISSNs: 1751-9675

Abstract

Abstract : By employing the MIMO (multiple‐input–multiple‐output) technology in radar, some new problems emerged, that, in order to benefit the MIMO gains in radar, it was necessary to solve them suitably. One of such obstacles is determining the positions of receive antennas in a MIMO radar system with widely separated antennas (WS MIMO radar), since it is shown that the antennas' positions affect the whole system's performance considerably. In this study, a proper receivers' positioning procedure is proposed. To do this end, four criteria are developed based on the proposed MIMO detector and the MIMO ambiguity function. The simulations verify that the proposed positioning procedure improves the radar's performance in many aspects, such as the overall probability of detection.