可重构全息表面辅助分布式MIMO雷达系统

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-04-10 DOI:10.1109/LCOMM.2025.3559500

Qian Li;Ziang Yang;Dou Li;Hongliang Zhang

{"title":"可重构全息表面辅助分布式MIMO雷达系统","authors":"Qian Li;Ziang Yang;Dou Li;Hongliang Zhang","doi":"10.1109/LCOMM.2025.3559500","DOIUrl":null,"url":null,"abstract":"Distributed phased Multiple-Input Multiple-Output (phased-MIMO) radar systems have attracted wide attention in target detection and tracking. However, phase-shifting circuits in phased subarrays lead to high power consumption and hardware cost. The reconfigurable holographic surface (RHS) offers an energy-efficient and cost-effective alternative to address this issue. In this letter, we propose RHS-aided distributed MIMO radar systems that provide more accurate multi-target detection with equivalent power consumption and hardware cost compared to distributed phased-MIMO radar systems. The RHS realizes beam steering by regulating the radiation amplitude of its elements, making conventional beamforming schemes designed for phased arrays inapplicable. To maximize detection accuracy, we design an amplitude-controlled beamforming scheme for multiple RHS subarrays. Simulations validate the superiority of the proposed scheme over the distributed phased-MIMO radar scheme and reveal the optimal allocation between coherent processing gain and diversity gain for optimal system performance with fixed hardware resources.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 6","pages":"1295-1299"},"PeriodicalIF":4.4000,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Reconfigurable Holographic Surface-Aided Distributed MIMO Radar Systems\",\"authors\":\"Qian Li;Ziang Yang;Dou Li;Hongliang Zhang\",\"doi\":\"10.1109/LCOMM.2025.3559500\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Distributed phased Multiple-Input Multiple-Output (phased-MIMO) radar systems have attracted wide attention in target detection and tracking. However, phase-shifting circuits in phased subarrays lead to high power consumption and hardware cost. The reconfigurable holographic surface (RHS) offers an energy-efficient and cost-effective alternative to address this issue. In this letter, we propose RHS-aided distributed MIMO radar systems that provide more accurate multi-target detection with equivalent power consumption and hardware cost compared to distributed phased-MIMO radar systems. The RHS realizes beam steering by regulating the radiation amplitude of its elements, making conventional beamforming schemes designed for phased arrays inapplicable. To maximize detection accuracy, we design an amplitude-controlled beamforming scheme for multiple RHS subarrays. Simulations validate the superiority of the proposed scheme over the distributed phased-MIMO radar scheme and reveal the optimal allocation between coherent processing gain and diversity gain for optimal system performance with fixed hardware resources.\",\"PeriodicalId\":13197,\"journal\":{\"name\":\"IEEE Communications Letters\",\"volume\":\"29 6\",\"pages\":\"1295-1299\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2025-04-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Communications Letters\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10962217/\",\"RegionNum\":3,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"TELECOMMUNICATIONS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10962217/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}

引用次数: 0

摘要

分布式相控多输入多输出（phase - mimo）雷达系统在目标探测和跟踪方面受到了广泛关注。然而，相控子阵列中的移相电路导致高功耗和硬件成本。可重构全息表面（RHS）为解决这一问题提供了一种节能且经济的替代方案。在这封信中，我们提出了rhs辅助的分布式MIMO雷达系统，与分布式相控MIMO雷达系统相比，该系统提供更精确的多目标检测，功耗和硬件成本相当。RHS通过调节其元件的辐射幅值来实现波束控制，使得传统的相控阵波束形成方案不适用。为了最大限度地提高检测精度，我们设计了一种用于多个RHS子阵列的幅度控制波束形成方案。仿真结果验证了该方案相对于分布式相控mimo雷达方案的优越性，并揭示了在硬件资源固定的情况下，相干处理增益和分集增益的优化分配可获得最优的系统性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Reconfigurable Holographic Surface-Aided Distributed MIMO Radar Systems

Distributed phased Multiple-Input Multiple-Output (phased-MIMO) radar systems have attracted wide attention in target detection and tracking. However, phase-shifting circuits in phased subarrays lead to high power consumption and hardware cost. The reconfigurable holographic surface (RHS) offers an energy-efficient and cost-effective alternative to address this issue. In this letter, we propose RHS-aided distributed MIMO radar systems that provide more accurate multi-target detection with equivalent power consumption and hardware cost compared to distributed phased-MIMO radar systems. The RHS realizes beam steering by regulating the radiation amplitude of its elements, making conventional beamforming schemes designed for phased arrays inapplicable. To maximize detection accuracy, we design an amplitude-controlled beamforming scheme for multiple RHS subarrays. Simulations validate the superiority of the proposed scheme over the distributed phased-MIMO radar scheme and reveal the optimal allocation between coherent processing gain and diversity gain for optimal system performance with fixed hardware resources.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.