Article(id=1200070657695380111, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070648174314131, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20230503, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1701964800000, revisedDateStr=2023-12-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1764048741029, onlineDateStr=2025-11-25, pubDate=1728921600000, pubDateStr=2024-10-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764048741029, onlineIssueDateStr=2025-11-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764048741029, creator=13701087609, updateTime=1764048741029, updator=13701087609, issue=Issue{id=1200070648174314131, tenantId=1146029695717560320, journalId=1189918454225211397, year='2024', volume='', issue='10', pageStart='1', pageEnd='48', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764048738759, creator=13701087609, updateTime=1764049409565, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200073461822488711, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070648174314131, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200073461822488712, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070648174314131, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=44, endPage=48, ext={EN=ArticleExt(id=1200070657963815585, articleId=1200070657695380111, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Millimeter Wave Radar Occlusion Detection Based on Spectral Estimation, columnId=null, journalTitle=Automotive Engineer, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problem of target detection failure of millimeter wave radar due to radar occlusion under complex road conditions, this paper proposes a radar occlusion detection method based on spectral estimation. Multi-channel signal accumulation is used to solve the two-dimensional spectrum of echo, adaptive CFAR detection algorithm is used to eliminate the radar target, and Spectrum estimation is used to solve the echo background power. The occlusion detection is accomplished by counting the energy distribution characteristics of the echo in a certain time interval. The experimental results show that the proposed method can achieve the radar occlusion state estimation with an accuracy of over 70% in 10 s and over 90% in 100 s.
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为解决复杂路况下毫米波雷达被遮挡而导致目标检测失效的问题,提出一种基于谱估计的雷达遮挡检测方法。利用多通道信号积累求解目标回波二维谱,采用自适应恒虚警检测算法剔除雷达目标,运用谱估计求解回波背景功率,通过统计回波在一定时间区间的能量分布特性完成遮挡检测。试验结果表明,该方法能够实现雷达遮挡状态估计,10 s内检测准确率超过70%,100 s内检测准确率达到90%以上。
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| 编号 | 遮挡物类别 | 说明 |
| 1 | 无遮挡(公路) | 用于对比验证 |
| 2 | 无遮挡(停车场) | 用于对比验证 |
| 3 | 水袋 | 测试下雨遮挡 |
| 4 | 冰袋 | 测试下雪遮挡 |
| 5 | 泥土 | 测试泥土遮挡 |
| 6 | 湿纸巾(多层) | 测试不同强度下雨遮挡场景 |
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遮挡物测试类别
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| 编号 | 遮挡物类别 | 说明 |
| 1 | 无遮挡(公路) | 用于对比验证 |
| 2 | 无遮挡(停车场) | 用于对比验证 |
| 3 | 水袋 | 测试下雨遮挡 |
| 4 | 冰袋 | 测试下雪遮挡 |
| 5 | 泥土 | 测试泥土遮挡 |
| 6 | 湿纸巾(多层) | 测试不同强度下雨遮挡场景 |
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| 编号 | 遮挡类别 | 数据帧序号 |
| 1 | 无遮挡 | 1~8 900 |
| 2 | 1层纸巾 | 8 901~14 700 |
| 3 | 2层纸巾 | 14 701~21 000 |
| 4 | 3层纸巾 | 21 001及以后 |
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| 编号 | 遮挡类别 | 数据帧序号 |
| 1 | 无遮挡 | 1~8 900 |
| 2 | 1层纸巾 | 8 901~14 700 |
| 3 | 2层纸巾 | 14 701~21 000 |
| 4 | 3层纸巾 | 21 001及以后 |
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