Article(id=1253997367838040224, tenantId=1146029695717560320, journalId=1251234736404742242, issueId=1253997366797857283, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-2337.2025.05.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1726848000000, receivedDateStr=2024-09-21, revisedDate=1737388800000, revisedDateStr=2025-01-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1776905870636, onlineDateStr=2026-04-23, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776905870636, onlineIssueDateStr=2026-04-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776905870636, creator=13041195026, updateTime=1776905870636, updator=13041195026, issue=Issue{id=1253997366797857283, tenantId=1146029695717560320, journalId=1251234736404742242, year='2025', volume='23', issue='5', pageStart='473', pageEnd='590', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776905870387, creator=13041195026, updateTime=1777355497251, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1255883238690702048, tenantId=1146029695717560320, journalId=1251234736404742242, issueId=1253997366797857283, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1255883238690702049, tenantId=1146029695717560320, journalId=1251234736404742242, issueId=1253997366797857283, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=513, endPage=522, ext={EN=ArticleExt(id=1253997368047755426, articleId=1253997367838040224, tenantId=1146029695717560320, journalId=1251234736404742242, language=EN, title=BF System Millimeter-Wave Radar Design and Point Cloud Clustering Method Research, columnId=null, journalTitle=Radar Science and Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In recent years, millimeter-wave radars have become more and more widely used in the field of smart transportation due to their small size, light weight, fast processing speed and high detection accuracy. Millimeter-wave radars have different beam systems and their principles are different. For beamforming (BF) system millimeter-wave radars, this paper first introduces the principle of beamforming and scanning, and then designs a suitable microstrip array antenna. The radar hardware RF board is developed by cascading four chips. On this basis, the process of obtaining data for radar target detection is given. Combined with the target data and point cloud features under the BF radar, a target point cloud clustering method using the regional growth idea is proposed. Finally, the feasibility and effectiveness of this method are verified through field experiments. By comparing with the traditional DBSCAN algorithm, this method can effectively solve the problem that two targets are easily clustered into one target when the distance between two targets is close. At the same time, it can effectively reduce the processing time when the number of point clouds is large. This method provides strong support for the application of target detection, tracking and recognition of the BF radar platform, and has broad application prospects and practical value.
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近些年,毫米波雷达体积小、质量轻、处理速度快以及检测精度高,使其在智慧交通领域的应用越来越广泛。毫米波雷达有着不同的波束体制,原理会有所不同。针对波束合成(Beam Forming,BF)体制毫米波雷达,本文首先介绍了波束合成及扫描原理,进而设计了合适的微带阵列天线,采用四芯片级联的方式,研制雷达硬件射频板;在此基础上,给出雷达探测目标获取数据的流程,结合BF体制雷达下的目标数据及点云特征,提出了一种利用区域生长思想的目标点云聚类方法;最后,通过实测实验,验证了该方法的可行性和有效性,通过对比传统的DBSCAN算法,该方法可以有效解决两个目标距离较近时容易聚成一个目标的问题,同时在点云数较大的情况下可以有效减少处理耗时。该方法为BF体制雷达平台的目标检测、跟踪和识别等应用提供了有力支撑,具有广阔的应用前景和实用价值。
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闫紫航 男,博士研究生,主要研究方向为分布式雷达成像。
张华 男,博士,教授,主要研究方向为雷达技术、信号处理。
阎博 男,博士,副教授,主要研究方向为雷达目标跟踪算法。
孙景荣 女,博士,教授,主要研究方向为雷达成像、目标识别。
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闫紫航 男,博士研究生,主要研究方向为分布式雷达成像。
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闫紫航 男,博士研究生,主要研究方向为分布式雷达成像。
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张华 男,博士,教授,主要研究方向为雷达技术、信号处理。
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张华 男,博士,教授,主要研究方向为雷达技术、信号处理。
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阎博 男,博士,副教授,主要研究方向为雷达目标跟踪算法。
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阎博 男,博士,副教授,主要研究方向为雷达目标跟踪算法。
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孙景荣 女,博士,教授,主要研究方向为雷达成像、目标识别。
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孙景荣 女,博士,教授,主要研究方向为雷达成像、目标识别。
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合成波束指向示意图, figureFileSmall=8PF7z/KGbE1sS5VdHYbDwQ==, figureFileBig=74zTyVAjDMWmJJ/6eBj4uQ==, tableContent=null), ArticleFig(id=1253999615276159999, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=i0eEC2hYkjViu6XgHSlu4Q==, figureFileBig=p4gWgCFY8vkqft7xkOVdsA==, tableContent=null), ArticleFig(id=1253999615615897601, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图2, caption=
微带阵列天线排布方式, figureFileSmall=i0eEC2hYkjViu6XgHSlu4Q==, figureFileBig=p4gWgCFY8vkqft7xkOVdsA==, tableContent=null), ArticleFig(id=1253999615821418503, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=g8KjaNC42IewGNYJwbtzPw==, figureFileBig=k5ra11r1WuQk7DTlol3l1A==, tableContent=null), ArticleFig(id=1253999615997579276, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图3, caption=
毫米波雷达射频板硬件图, figureFileSmall=g8KjaNC42IewGNYJwbtzPw==, figureFileBig=k5ra11r1WuQk7DTlol3l1A==, tableContent=null), ArticleFig(id=1253999616094048271, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=6GT+v9zY5zvliQSMzBnAyQ==, figureFileBig=fowlxpYtP0xaGuVWbI3KNg==, tableContent=null), ArticleFig(id=1253999616173740049, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图4, caption=
目标距离、速度获取流程图, figureFileSmall=6GT+v9zY5zvliQSMzBnAyQ==, figureFileBig=fowlxpYtP0xaGuVWbI3KNg==, tableContent=null), ArticleFig(id=1253999616333123604, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=cscWvVsqi5/BwqWi4W3E3g==, figureFileBig=rkcIqAC/QJP0/V4UJVykzA==, tableContent=null), ArticleFig(id=1253999616475729940, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图5, caption=
二维特征散点图, figureFileSmall=cscWvVsqi5/BwqWi4W3E3g==, figureFileBig=rkcIqAC/QJP0/V4UJVykzA==, tableContent=null), ArticleFig(id=1253999616580587545, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=orwNIfVm+CITNh77SgiwYg==, figureFileBig=2GEPHAOfdZ1zvUZskZbEiw==, tableContent=null), ArticleFig(id=1253999616718999579, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图6, caption=
核心点选取流程图, figureFileSmall=orwNIfVm+CITNh77SgiwYg==, figureFileBig=2GEPHAOfdZ1zvUZskZbEiw==, tableContent=null), ArticleFig(id=1253999616815468573, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=Nqm0d+KJXg8o49a8AK4H+Q==, figureFileBig=g0cjF3HvQX0zf3VMCtLcUA==, tableContent=null), ArticleFig(id=1253999616949686302, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图7, caption=
区域生长流程框图, figureFileSmall=Nqm0d+KJXg8o49a8AK4H+Q==, figureFileBig=g0cjF3HvQX0zf3VMCtLcUA==, tableContent=null), ArticleFig(id=1253999617033572384, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=LySvd4nkpTMvYCgXDUoQjA==, figureFileBig=dKFzmzKvc5VsAzwIJld9Jg==, tableContent=null), ArticleFig(id=1253999617163595810, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图8, caption=
点云区域生长过程示意图, figureFileSmall=LySvd4nkpTMvYCgXDUoQjA==, figureFileBig=dKFzmzKvc5VsAzwIJld9Jg==, tableContent=null), ArticleFig(id=1253999617276842019, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=MEzpMbPx+sgGvsyaKO5OnA==, figureFileBig=ytdLa332VEMfLV547u+2gg==, tableContent=null), ArticleFig(id=1253999617394282532, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图9, caption=
雷达波束扫描示意图, figureFileSmall=MEzpMbPx+sgGvsyaKO5OnA==, figureFileBig=ytdLa332VEMfLV547u+2gg==, tableContent=null), ArticleFig(id=1253999617528500262, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=2nwez5Dlc79p1V8Y1zMxWA==, figureFileBig=0uM9v3bG0a94SDBC5URH+g==, tableContent=null), ArticleFig(id=1253999619172667433, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图10, caption=
雷达形成的单目标的点云图, figureFileSmall=2nwez5Dlc79p1V8Y1zMxWA==, figureFileBig=0uM9v3bG0a94SDBC5URH+g==, tableContent=null), ArticleFig(id=1253999619252359210, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=szyzMi3YMhy97tEAzSC3xg==, figureFileBig=Fh8LrB/3vcqRX9Qzyi08dA==, tableContent=null), ArticleFig(id=1253999619378188332, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图11, caption=
不同距离下的目标点云特征图, figureFileSmall=szyzMi3YMhy97tEAzSC3xg==, figureFileBig=Fh8LrB/3vcqRX9Qzyi08dA==, tableContent=null), ArticleFig(id=1253999619571126318, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=I2W1p3ocI8slPndbOPfsdw==, figureFileBig=EiBwWZg8qB5ZHujIYLcJ+Q==, tableContent=null), ArticleFig(id=1253999619717926960, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图12, caption=
不同类型目标的点云统计分布, figureFileSmall=I2W1p3ocI8slPndbOPfsdw==, figureFileBig=EiBwWZg8qB5ZHujIYLcJ+Q==, tableContent=null), ArticleFig(id=1253999619902476338, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=UTtGG83SQ20f2XDEtIW4XQ==, figureFileBig=vP1lLDgAhBaT0pfId7akKg==, tableContent=null), ArticleFig(id=1253999619986362420, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图13, caption=
实验采集的多帧点云数据, figureFileSmall=UTtGG83SQ20f2XDEtIW4XQ==, figureFileBig=vP1lLDgAhBaT0pfId7akKg==, tableContent=null), ArticleFig(id=1253999620141551670, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=xZgZKsmWbI6Nlfs+JCtk+w==, figureFileBig=YRPXSJbbhoAHOD5L/Fg2vA==, tableContent=null), ArticleFig(id=1253999620254797880, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图14, caption=
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实验测试点云数据及其聚类结果, figureFileSmall=lJJzMymgxOKV2XP9O799zA==, figureFileBig=iUHf/PzGOk0cvAT3y7cgtg==, tableContent=null), ArticleFig(id=1253999620703588414, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=Um7oUIjmEws7WZB0AgjKeA==, figureFileBig=lL8iA+3qyBlOaN8IAkotAw==, tableContent=null), ArticleFig(id=1253999620821028928, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图16, caption=
公共汽车和小型汽车测试场景及结果, figureFileSmall=Um7oUIjmEws7WZB0AgjKeA==, figureFileBig=lL8iA+3qyBlOaN8IAkotAw==, tableContent=null), ArticleFig(id=1253999620988801090, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=ehyo+HOSSVvf2Csky47yBw==, figureFileBig=Apt9pDPIbHr4/1kioqwZ5g==, tableContent=null), ArticleFig(id=1253999621131407428, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=图17, caption=
小型汽车和自行车测试场景及结果, figureFileSmall=ehyo+HOSSVvf2Csky47yBw==, figureFileBig=Apt9pDPIbHr4/1kioqwZ5g==, tableContent=null), ArticleFig(id=1253999621261430855, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 参数值 |
|---|
| 起始频率fe | 78GHz |
| Chirp上升沿时长T0 | 25μs |
| Chirp下降沿时长T1 | 2.7μs |
| 波束扫描范围 | -12.5°~12.5° |
| 扫描步进角度 | 2.5° |
| 距离分辨率 | 0.976m |
| 速度分辨率 | 0.536m/s |
), ArticleFig(id=1253999621391454279, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=表1, caption=
雷达参数配置
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| 参数 | 参数值 |
|---|
| 起始频率fe | 78GHz |
| Chirp上升沿时长T0 | 25μs |
| Chirp下降沿时长T1 | 2.7μs |
| 波束扫描范围 | -12.5°~12.5° |
| 扫描步进角度 | 2.5° |
| 距离分辨率 | 0.976m |
| 速度分辨率 | 0.536m/s |
), ArticleFig(id=1253999621479534665, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 点云数量 | 本文所提算法/ms | 传统DBSCAN算法/ms |
|---|
| 161 | 3.552 | 3.598 |
| 287 | 6.635 | 6.754 |
| 378 | 8.537 | 8.937 |
| 497 | 12.049 | 13.145 |
| 560 | 12.877 | 13.972 |
| 819 | 20.951 | 22.753 |
| 1127 | 27.209 | 30.218 |
), ArticleFig(id=1253999621550837835, tenantId=1146029695717560320, journalId=1251234736404742242, articleId=1253997367838040224, language=CN, label=表2, caption=
不同点云数算法处理耗时比较
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| 点云数量 | 本文所提算法/ms | 传统DBSCAN算法/ms |
|---|
| 161 | 3.552 | 3.598 |
| 287 | 6.635 | 6.754 |
| 378 | 8.537 | 8.937 |
| 497 | 12.049 | 13.145 |
| 560 | 12.877 | 13.972 |
| 819 | 20.951 | 22.753 |
| 1127 | 27.209 | 30.218 |
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