Novel approaches for target parameter extraction with eigenvalue thresholding and Dolph–Chebyshev windowing in multiple‐input multiple‐output (MIMO) radar system

IF 1.7 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Communication Systems Pub Date : 2024-07-12 DOI:10.1002/dac.5912

Sheetal G. Jagtap, Ashwini S. Kunte

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Abstract

SummaryMultiple‐input multiple‐output (MIMO) radar, employing multiple transmitters and receivers, enhances radar capabilities. It detects and tracks objects like aircraft and ships using radio waves. Compared with traditional phased‐array radar, MIMO systems offer greater flexibility, improving angular resolution and target detection. Researchers focus on direction of arrival (DoA) evaluation for closely spaced targets. Effective beamforming and accurate DoA estimation are crucial for MIMO radar performance. This study explores two methods: Capon beamforming with Dolph–Chebyshev windowing and the MUSIC algorithm with Eigenvalue thresholding. Tested under low signal‐to‐noise ratio (SNR) and fewer snapshots, these techniques notably reduce side lobes and enhance angular resolution, validated by experiments. Additionally, the suppression of side lobes significantly improves the clarity and accuracy of target detection, minimizing potential interference and false targets. This enhancement in side lobe suppression facilitates a more precise spatial differentiation between multiple targets, thus contributing to the overall effectiveness and reliability of MIMO radar systems.

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在多输入多输出 (MIMO) 雷达系统中使用特征值阈值和 Dolph-Chebyshev 窗口提取目标参数的新方法

摘要多输入多输出（MIMO）雷达采用多个发射器和接收器，增强了雷达功能。它利用无线电波探测和跟踪飞机和船只等物体。与传统的相控阵雷达相比，MIMO 系统具有更大的灵活性，可提高角度分辨率和目标探测能力。研究人员的重点是对间距较近的目标进行到达方向（DoA）评估。有效的波束成形和准确的到达方向估计对 MIMO 雷达的性能至关重要。本研究探讨了两种方法：带有 Dolph-Chebyshev 窗口的 Capon 波束成形和带有特征值阈值的 MUSIC 算法。在信噪比（SNR）较低和快照较少的情况下进行测试，这些技术显著减少了侧叶，提高了角度分辨率，并得到了实验的验证。此外，抑制边叶还能显著提高目标检测的清晰度和准确性，最大限度地减少潜在干扰和错误目标。侧叶抑制的增强有助于更精确地区分多个目标，从而提高多输入多输出雷达系统的整体有效性和可靠性。

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来源期刊

International Journal of Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.