Article(id=1149743084524712289, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, articleNumber=1003-3033(2024)06-0164-09, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.06.0720, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1702483200000, receivedDateStr=2023-12-14, revisedDate=1710777600000, revisedDateStr=2024-03-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049712543, onlineDateStr=2025-07-09, pubDate=1719504000000, pubDateStr=2024-06-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049712543, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049712543, creator=13701087609, updateTime=1752049712543, updator=13701087609, issue=Issue{id=1149743083069288795, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='6', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752049712197, creator=13701087609, updateTime=1756468919644, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1168278582599098697, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1168278582599098698, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149743083069288795, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=164, endPage=172, ext={EN=ArticleExt(id=1149743086110159209, articleId=1149743084524712289, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Vehicle trajectory prediction based on EKF-GRU, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
To enhance the driving safety and achieve correct decision planning for autonomous vehicles,a safe driving trajectory prediction method based on EKF-GRU was proposed. By combining learning-based methods with physics-based approaches,the prediction accuracy was improved and the rationality of the predicted trajectories was enhanced. In the first step of this method,a prediction network was constructed based on GRU to predict the longitudinal acceleration and yaw angular velocity of vehicles by extracting historical trajectory features. In the second step,an EKF state estimator was built based on the nonlinear vehicle kinematics to generate the vehicle's future limited-time trajectory,incorporating the observations obtained previously. The trajectory prediction method was validated on the NGSIM I-80 and US-101 multi-vehicle trajectory datasets. Experimental results demonstrate that the final distance errors (FDE),root mean square errors (RMSE),and average distance errors (ADE) of the predicted trajectories generated by traditional physics-based methods are 6.48,7.69 and 3.03 meters,respectively. In contrast,trajectories predicted using EKF-GRU exhibit higher accuracy,and the corresponding values are 5.45,6.67 and 2.56 meters,respectively. This represents improvements of 15.90%,13.26% and 15.51%.
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为提升行车安全,实现自动驾驶车辆正确的决策规划,提出基于扩展卡尔曼滤波(EKF)-门控循环单元(GRU)的车辆轨迹预测方法,结合学习方法与物理模型,在提升预测精度的同时,提高轨迹预测的合理性。首先,基于GRU构建预测网络,通过提取车辆的历史轨迹特征预测车辆的纵向加速度及横摆角速度;其次,基于车辆非线性运动学构建EKF状态估计器,结合观测值生成车辆未来有限时域的行驶轨迹;最后,在高速公路多车轨迹数据集NGSIM I-80和US-101上进行轨迹预测方法验证。结果表明:采用传统的物理模型生成预测轨迹,其最终距离误差(FDE)、均方根误差(RMSE)、平均距离误差(ADE)值分别为6.48、7.69和3.03 m。相比之下,利用EKF-GRU生成的预测轨迹表现出更高的准确性,对应的数值分别为5.45、6.67和2.56 m,分别提升15.90%、13.26%和15.51%。
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张传莹 (1997—),男,山东潍坊人,硕士研究生,主要研究方向为轨迹预测和碰撞风险评估。E-mail:zf2113106@buaa.edu.cn。
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张传莹 (1997—),男,山东潍坊人,硕士研究生,主要研究方向为轨迹预测和碰撞风险评估。E-mail:zf2113106@buaa.edu.cn。
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1 北京航空航天大学 交通科学与工程学院,北京 100191)]), AuthorCompany(id=1168181787739041980, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, xref=2, ext=[AuthorCompanyExt(id=1168181787747430589, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, companyId=1168181787739041980, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 贵州开源爆破工程有限公司,贵州 贵阳 551400)])], figs=[ArticleFig(id=1168181789949440233, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.1, caption=
Bicycle model, figureFileSmall=cPvFxnHyPdEnroGNDqxHCQ==, figureFileBig=mEOXOnLURUqawh0b9Js/UQ==, tableContent=null), ArticleFig(id=1168181790003966186, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图1, caption=
自行车模型, figureFileSmall=cPvFxnHyPdEnroGNDqxHCQ==, figureFileBig=mEOXOnLURUqawh0b9Js/UQ==, tableContent=null), ArticleFig(id=1168181790050103531, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.2, caption=
Process of EKF-CTRV trajectory prediction method, figureFileSmall=eUlAo6Wa+xw25uENN2gOnA==, figureFileBig=NkgnU+JMmaY5it7dW3uQPQ==, tableContent=null), ArticleFig(id=1168181790092046572, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图2, caption=
基于EKF-CTRV轨迹预测方法流程, figureFileSmall=eUlAo6Wa+xw25uENN2gOnA==, figureFileBig=NkgnU+JMmaY5it7dW3uQPQ==, tableContent=null), ArticleFig(id=1168181790142378221, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.3, caption=
GRU, figureFileSmall=tPE3jBT6cfOVrz2rAqtsaQ==, figureFileBig=n2JvdJ/d+G3Ob9UEpKjbvw==, tableContent=null), ArticleFig(id=1168181790201098478, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图3, caption=
GRU 注:hk为当前时刻的隐状态;Xk+1为下一时刻的输入;Rk+1为下一时刻的重置门状态;Zk+1为下一时刻的更新门状态; 为下一时刻的候选隐状态;hk+1为下一时刻的隐状态;σ为sigmoid激活函数;tanh为双曲正切函数激活函数;☉为点乘;+为点加。
, figureFileSmall=tPE3jBT6cfOVrz2rAqtsaQ==, figureFileBig=n2JvdJ/d+G3Ob9UEpKjbvw==, tableContent=null), ArticleFig(id=1168181790276595951, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.4, caption=
Architecture of deep kinematic-based GRU for trajectory prediction, figureFileSmall=OjBnPSbinZZCAg7C5FLzyA==, figureFileBig=5gfOtRSlsJgrwmz1DlGsFA==, tableContent=null), ArticleFig(id=1168181790347899120, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图4, caption=
基于深层运动学的GRU轨迹预测方法架构, figureFileSmall=OjBnPSbinZZCAg7C5FLzyA==, figureFileBig=5gfOtRSlsJgrwmz1DlGsFA==, tableContent=null), ArticleFig(id=1168181790398230769, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.5, caption=
I-80 collection environment, figureFileSmall=VOsF/2hVkketBsvXIjBvFw==, figureFileBig=G4LGTmNWO1dthwsz7IFwRw==, tableContent=null), ArticleFig(id=1168181790448562418, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图5, caption=
I-80采集环境, figureFileSmall=VOsF/2hVkketBsvXIjBvFw==, figureFileBig=G4LGTmNWO1dthwsz7IFwRw==, tableContent=null), ArticleFig(id=1168181790549225715, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.6, caption=
US-101 collection environment, figureFileSmall=ONiJY2w8HtdJS1AW4UVWQw==, figureFileBig=AvNocOMsV64aIMnK2RPeug==, tableContent=null), ArticleFig(id=1168181790624723188, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图6, caption=
US-101采集环境, figureFileSmall=ONiJY2w8HtdJS1AW4UVWQw==, figureFileBig=AvNocOMsV64aIMnK2RPeug==, tableContent=null), ArticleFig(id=1168181790691832053, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.7, caption=
Comparison of velocity and acceleration processing results, figureFileSmall=wUW43xC62bHzpGvR6bVpbw==, figureFileBig=s9xB9gP4TXpudWFy1uBiIg==, tableContent=null), ArticleFig(id=1168181790809272566, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图7, caption=
速度、加速度处理结果对比, figureFileSmall=wUW43xC62bHzpGvR6bVpbw==, figureFileBig=s9xB9gP4TXpudWFy1uBiIg==, tableContent=null), ArticleFig(id=1168181790888964343, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.8, caption=
Calculation and smoothing filter effect of heading angle and roll angle velocity, figureFileSmall=NNadCP8lDVFNV+Ubh0swtA==, figureFileBig=XJsKTP5rWfMpgoh2UbrVXw==, tableContent=null), ArticleFig(id=1168181790939295992, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图8, caption=
航向角、横摆角速度计算及平滑过滤效果, figureFileSmall=NNadCP8lDVFNV+Ubh0swtA==, figureFileBig=XJsKTP5rWfMpgoh2UbrVXw==, tableContent=null), ArticleFig(id=1168181791002210553, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Fig.9, caption=
EKF-GRU trajectory prediction results, figureFileSmall=2X+Xn1uBnnlIncC6/j07IA==, figureFileBig=XKHiS7nSlYy3fHsqgda5JQ==, tableContent=null), ArticleFig(id=1168181791056736506, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=图9, caption=
EKF-GRU轨迹预测结果, figureFileSmall=2X+Xn1uBnnlIncC6/j07IA==, figureFileBig=XKHiS7nSlYy3fHsqgda5JQ==, tableContent=null), ArticleFig(id=1168181791128039675, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Table 1, caption=
Encoder-Decoder network architecture
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网络架构: | |
| 层级: | 4×1 |
| 输入层: | 1-D, |
| GRU层: | 80Units |
| |
| 全连接层: | |
| 输出层: | Regression |
), ArticleFig(id=1168181791199342844, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=表1, caption=
Encoder-Decoder网络架构
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网络架构: | |
| 层级: | 4×1 |
| 输入层: | 1-D, |
| GRU层: | 80Units |
| |
| 全连接层: | |
| 输出层: | Regression |
), ArticleFig(id=1168181791258063101, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 EKF- GRU轨迹预测 |
需求: for k from 0 to 49 step 1 do end for return |
), ArticleFig(id=1168181791333560574, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=, caption=
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 EKF- GRU轨迹预测 |
需求: for k from 0 to 49 step 1 do end for return |
), ArticleFig(id=1168181791446806783, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法2 数据平滑过滤过程 |
| 需求: |
| 设置: |
for k from-30 to -1 step 1 do end for |
| |
), ArticleFig(id=1168181791513915648, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=, caption=
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法2 数据平滑过滤过程 |
| 需求: |
| 设置: |
for k from-30 to -1 step 1 do end for |
| |
), ArticleFig(id=1168181791585218817, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=EN, label=Table 2, caption=
Comparison of prediction results between baseline method EKF-CTRV and extended method EKF-GRU
, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测步长/s | 1 | 2 | 3 | 4 | 5 |
| FDE | EKF-CTRV | 0.61 | 1.76 | 2.98 | 4.65 | 6.48 |
| EKF-GRU* | 0.61 | 1.51 | 2.52 | 4.09 | 5.45 |
| RMSE | EKF-CTRV | 0.81 | 2.03 | 3.62 | 5.84 | 7.69 |
| EKF-GRU* | 0.76 | 1.78 | 3.18 | 4.73 | 6.67 |
| ADE | EKF-CTRV | 3.03 |
| EKF-GRU* | 2.56 |
), ArticleFig(id=1168181791664910594, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149743084524712289, language=CN, label=表2, caption=
基线方法EKF-CTRV和扩展方法EKF-GRU的预测结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测步长/s | 1 | 2 | 3 | 4 | 5 |
| FDE | EKF-CTRV | 0.61 | 1.76 | 2.98 | 4.65 | 6.48 |
| EKF-GRU* | 0.61 | 1.51 | 2.52 | 4.09 | 5.45 |
| RMSE | EKF-CTRV | 0.81 | 2.03 | 3.62 | 5.84 | 7.69 |
| EKF-GRU* | 0.76 | 1.78 | 3.18 | 4.73 | 6.67 |
| ADE | EKF-CTRV | 3.03 |
| EKF-GRU* | 2.56 |
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