汽车工程
汽車工程
기차공정
AUTOMOTIVE ENGINEERING
2014年
11期
1415-1420,1414
,共7页
车辆识别%雷达测距%线段提取%数据关联
車輛識彆%雷達測距%線段提取%數據關聯
차량식별%뢰체측거%선단제취%수거관련
vehicle identification%radar ranging%line segment extraction%data association
本文中提出了一种基于雷达测距的车辆识别与跟踪方法,以准确地识别道路上的车辆目标。首先对采集到的每帧数据采用自适应距离阈值的方法进行聚类分析。在聚类内部采用端点迭代拟合算法提取线段,在此基础上得出目标的特征向量,并据之识别车辆目标。然后通过计算特征向量的代价函数进行多目标关联,利用卡尔曼滤波器根据关联结果更新目标的状态。最后,以智能车辆BJUT-IV配备LMS291激光雷达在校园道路上对本方法进行验证测试,结果表明,提出的方法能够准确地对多个行驶车辆进行跟踪。
本文中提齣瞭一種基于雷達測距的車輛識彆與跟蹤方法,以準確地識彆道路上的車輛目標。首先對採集到的每幀數據採用自適應距離閾值的方法進行聚類分析。在聚類內部採用耑點迭代擬閤算法提取線段,在此基礎上得齣目標的特徵嚮量,併據之識彆車輛目標。然後通過計算特徵嚮量的代價函數進行多目標關聯,利用卡爾曼濾波器根據關聯結果更新目標的狀態。最後,以智能車輛BJUT-IV配備LMS291激光雷達在校園道路上對本方法進行驗證測試,結果錶明,提齣的方法能夠準確地對多箇行駛車輛進行跟蹤。
본문중제출료일충기우뢰체측거적차량식별여근종방법,이준학지식별도로상적차량목표。수선대채집도적매정수거채용자괄응거리역치적방법진행취류분석。재취류내부채용단점질대의합산법제취선단,재차기출상득출목표적특정향량,병거지식별차량목표。연후통과계산특정향량적대개함수진행다목표관련,이용잡이만려파기근거관련결과경신목표적상태。최후,이지능차량BJUT-IV배비LMS291격광뢰체재교완도로상대본방법진행험증측시,결과표명,제출적방법능구준학지대다개행사차량진행근종。
A method of vehicle identification and tracking based on radar ranging is proposed in this paper to accurately identify vehicle objects on road. Firstly a clustering analysis is conducted on data collected with an a-daptive distance threshold, and iterative end point fitting ( IEPF) algorithm is adopted to extract line segments with-in a cluster. On this basis the feature vector of object is obtained, with which vehicle object is identified. Then by calculating the cost function of feature vector, multi-object association is performed, and based on the results of as-sociation the state of object is updated with Kalman filter. Finally a verification test of the method is performed on the road in campus by an intelligent vehicle BJUT-IV with laser radar LMS291 . The results show that the method proposed can accurately track multiple moving vehicles.