自适应对角加载改进的最小二乘法宽带波束形成

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-06-19 DOI:10.26866/jees.2023.4.l.14

Euiho Shin, Youngchul Chung, Cheol-Sun Park, Seonkyo Kim, Jungsuek Oh

{"title":"自适应对角加载改进的最小二乘法宽带波束形成","authors":"Euiho Shin, Youngchul Chung, Cheol-Sun Park, Seonkyo Kim, Jungsuek Oh","doi":"10.26866/jees.2023.4.l.14","DOIUrl":null,"url":null,"abstract":"The least square method (LSM) is a commonly used beamforming method. However, it limits the beamforming frequency bandwidth and is vulnerable to noise; therefore, diagonal loading is used to overcome these limitations. The diagonal loading proposed in this study can be used for broadband beamforming in cases in which noise does not exist, and it makes the loading factor adaptive to a singular value distribution. The simulation results show that the proposed method works stably above the beamforming frequency limit, even for an extended beamforming frequency. We expect that the proposed method can be used to form frequency-invariant beam patterns used in monopulse algorithms to detect signals of unknown frequencies.","PeriodicalId":15662,"journal":{"name":"Journal of electromagnetic engineering and science","volume":" ","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Broadband Beamforming Using the Least Square Method Improved via Adaptive Diagonal Loading\",\"authors\":\"Euiho Shin, Youngchul Chung, Cheol-Sun Park, Seonkyo Kim, Jungsuek Oh\",\"doi\":\"10.26866/jees.2023.4.l.14\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The least square method (LSM) is a commonly used beamforming method. However, it limits the beamforming frequency bandwidth and is vulnerable to noise; therefore, diagonal loading is used to overcome these limitations. The diagonal loading proposed in this study can be used for broadband beamforming in cases in which noise does not exist, and it makes the loading factor adaptive to a singular value distribution. The simulation results show that the proposed method works stably above the beamforming frequency limit, even for an extended beamforming frequency. We expect that the proposed method can be used to form frequency-invariant beam patterns used in monopulse algorithms to detect signals of unknown frequencies.\",\"PeriodicalId\":15662,\"journal\":{\"name\":\"Journal of electromagnetic engineering and science\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2023-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of electromagnetic engineering and science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.26866/jees.2023.4.l.14\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of electromagnetic engineering and science","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.26866/jees.2023.4.l.14","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

摘要

最小二乘法是一种常用的波束形成方法。然而，它限制了波束形成的频率带宽，并且容易受到噪声的影响;因此，采用对角加载来克服这些限制。本文提出的对角加载可用于无噪声情况下的宽带波束形成，并使加载因子自适应于奇异值分布。仿真结果表明，该方法在波束形成频率限制以上稳定工作，即使在波束形成频率扩大的情况下也是如此。我们期望所提出的方法可以用来形成频率不变的波束模式，用于单脉冲算法来检测未知频率的信号。

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

Broadband Beamforming Using the Least Square Method Improved via Adaptive Diagonal Loading

The least square method (LSM) is a commonly used beamforming method. However, it limits the beamforming frequency bandwidth and is vulnerable to noise; therefore, diagonal loading is used to overcome these limitations. The diagonal loading proposed in this study can be used for broadband beamforming in cases in which noise does not exist, and it makes the loading factor adaptive to a singular value distribution. The simulation results show that the proposed method works stably above the beamforming frequency limit, even for an extended beamforming frequency. We expect that the proposed method can be used to form frequency-invariant beam patterns used in monopulse algorithms to detect signals of unknown frequencies.

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

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.