Article(id=1253994379954287410, tenantId=1146029695717560320, journalId=1251234571887362144, issueId=1253994374069682477, articleNumber=null, orderNo=null, doi=10.20249/j.cnki.2096-5974.2025.05.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1776905158258, onlineDateStr=2026-04-23, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776905158258, onlineIssueDateStr=2026-04-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776905158257, creator=13041195026, updateTime=1776905158257, updator=13041195026, issue=Issue{id=1253994374069682477, tenantId=1146029695717560320, journalId=1251234571887362144, year='2025', volume='8', issue='5', pageStart='1', pageEnd='114', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776905156856, creator=13041195026, updateTime=1777355348378, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1255882614297248384, tenantId=1146029695717560320, journalId=1251234571887362144, issueId=1253994374069682477, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1255882614301442689, tenantId=1146029695717560320, journalId=1251234571887362144, issueId=1253994374069682477, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=10, ext={EN=ArticleExt(id=1253994382244377402, articleId=1253994379954287410, tenantId=1146029695717560320, journalId=1251234571887362144, language=EN, title=Probabilistic Graph Optimization Integrated Navigation Based on Probabilistic Time Series Transformer, columnId=1253994380264669540, journalTitle=Flight Control & Detection, columnName=Navigation, Guidance and Control Technology, runingTitle=null, highlight=null, articleAbstract=
To satisfy the modern track traffic's demand for maintaining high precision and continuity of navigation under complex environmental conditions,and to address the issue of positioning drift caused by data outages in nonlinear dynamic integrated navigation systems,this paper proposes a novel adaptive estimation method for observation errors in nonlinear dynamic integrated navi gation systems. This method is based on a Probabilistic Time Series Transformer model,aiming to resolve the aforementioned issues. By introducing self-learning capabilities through the Probabilistic Time Series Transformer,the method adaptively adjusts the impact of state prediction and observation information outages on the dynamic navigation system. The Probabilistic Time Series Transformer is composed of a dual-loop system of a generative model and an inference model, combined with LSTM network to tackle the challenges of multivariate time series modeling. The integrated navigation system based on the Probabilistic Time Series Transformer optimizes the error compensation mechanism by establishing a relationship between the current Kalman filter gain and the optimal estimation error,thereby improving the accuracy and stability of the nonlinear navigation system. Experimental results demonstrate that the proposed method not only effectively controls the impact of GNSS outages on the nonlinear navigation system but also accurately estimates and compensates for observation model system errors. The average positioning error in various complex scenarios is less than 10m. The suppression of positioning drift in the observation model is better than that of other filtering methods.
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为满足现代轨道交通在复杂的环境条件下保持高精度和连续性的导航需求,解决非线性动态组合导航系统因观测数据失锁导致的定位漂移问题,结合基于概率时间序列注意力模型,提出一种新的非线性动态组合导航系统观测误差自适应估计方法,利用概率时间序列注意力模型,引入自学习能力,自适应调整状态预测和观测信息失锁状态对动态导航系统的影响。概率时间序列注意力模型由生成模型和推理模型组成双循环系统,并结合长短期记忆网络,以解决多变量时间序列建模问题。基于概率时间序列注意力模型的组合导航系统,通过建立当前卡尔曼滤波增益与最优估计误差之间的关系,优化误差补偿机制以提高非线性导航系统的精度和稳定性。实验结果表明,所提出的研究方法不仅能够控制GNSS失锁状态对非线性导航系统的影响,且能够有效地估计和补偿观测模型系统误差,各种复杂状态下滤波解算平均定位误差小于10m;抑制观测模型定位漂移优于其他滤波方法。
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The structure of probabilistic time series transformer, figureFileSmall=qK7leN7Jh87vEg7fgO0YsQ==, figureFileBig=1OQgs2N21oBSNRDxPkYeqw==, tableContent=null), ArticleFig(id=1253994404524519691, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=图1, caption=
PTST结构图, figureFileSmall=qK7leN7Jh87vEg7fgO0YsQ==, figureFileBig=1OQgs2N21oBSNRDxPkYeqw==, tableContent=null), ArticleFig(id=1253994404734234896, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=EN, label=Fig.2, caption=
The structure of integrated navigation system based on probabilistic time series transformer, figureFileSmall=RvQ930YrhnHwsWHSXV7Brw==, figureFileBig=D9cblcy9knG8lKH1nah6YA==, tableContent=null), ArticleFig(id=1253994404822315283, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=图2, caption=
基于概率时间序列注意力模型的组合导航系统结构图, figureFileSmall=RvQ930YrhnHwsWHSXV7Brw==, figureFileBig=D9cblcy9knG8lKH1nah6YA==, tableContent=null), ArticleFig(id=1253994404889424150, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=EN, label=Fig.3, caption=
GNSS outage interval integrated navigation, figureFileSmall=QjezWeCcn+VI6EAmg0riSg==, figureFileBig=HBPqxJipQjPotrZ9lblBiQ==, tableContent=null), ArticleFig(id=1253994404960727321, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=图3, caption=
GNSS失锁区间组合导航, figureFileSmall=QjezWeCcn+VI6EAmg0riSg==, figureFileBig=HBPqxJipQjPotrZ9lblBiQ==, tableContent=null), ArticleFig(id=1253994405032030491, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=EN, label=Fig.4, caption=
Planar trajectory of the experiment, figureFileSmall=ACkCmSq18TNdGZTLVnD2Ow==, figureFileBig=sIgx1fg/bV/FZO1qx0Ru8A==, tableContent=null), ArticleFig(id=1253994405099139358, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=图4, caption=
现场实验平面轨迹, figureFileSmall=ACkCmSq18TNdGZTLVnD2Ow==, figureFileBig=sIgx1fg/bV/FZO1qx0Ru8A==, tableContent=null), ArticleFig(id=1253994405178831135, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=EN, label=Fig.5, caption=
The position errors in each axis direction were compensated by using the PTST model in the experiment, figureFileSmall=6l8XFGXYkv/EuH26o4frWg==, figureFileBig=kFCendsevBYPEpfi45o6EA==, tableContent=null), ArticleFig(id=1253994405266911520, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=图5, caption=
实验中使用PTST模型补偿后各轴向位置误差, figureFileSmall=6l8XFGXYkv/EuH26o4frWg==, figureFileBig=kFCendsevBYPEpfi45o6EA==, tableContent=null), ArticleFig(id=1253994405338214689, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=EN, label=Tab.1, caption=
Experiment parameter
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| 类型 | 参数 | 数值 | 采样率 |
|---|
| IMU | 陀螺仪零偏 | 6×10-4 (°)/s | 1000Hz |
| 陀螺仪角度随机游走 |  |
| 加速度零偏 | 10-5g(g=9.18m/s2) |
| 加速度随机游走 | 3×10-5g |
| GNSS | 水平定位精度 | 1.5m | 10Hz |
| 垂直定位精度 | 2.5m |
| 滤波初始值 | 初始位置误差 | [3,3,3]m | |
| 初始速度误差 | [0.3,0.3,0.3]m/s |
| 初始姿态误差 | δq0 = [3,0.15,0.15,0.15]T |
| 初始系统误差 | μ0 = [3,3,3]T |
), ArticleFig(id=1253994405413712163, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=表1, caption=
实验参数
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| 类型 | 参数 | 数值 | 采样率 |
|---|
| IMU | 陀螺仪零偏 | 6×10-4 (°)/s | 1000Hz |
| 陀螺仪角度随机游走 |  |
| 加速度零偏 | 10-5g(g=9.18m/s2) |
| 加速度随机游走 | 3×10-5g |
| GNSS | 水平定位精度 | 1.5m | 10Hz |
| 垂直定位精度 | 2.5m |
| 滤波初始值 | 初始位置误差 | [3,3,3]m | |
| 初始速度误差 | [0.3,0.3,0.3]m/s |
| 初始姿态误差 | δq0 = [3,0.15,0.15,0.15]T |
| 初始系统误差 | μ0 = [3,3,3]T |
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Comparison of prediction error between PTST model and baseline algorithm
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| | X轴向误差/m | Y轴向误差/m | 高程误差/m |
|---|
| 最大值 | 平均值 | 均方根 | 最大值 | 平均值 | 均方根 | 最大值 | 平均值 | 均方根 |
|---|
| ARIMA | 隧道区域 | 56.02 | 32.63 | 38.42 | 63.85 | 36.64 | 43.25 | 18.71 | 12.09 | 15.63 |
| 遮挡区域 | 15.69 | 7.75 | 10.39 | 19.51 | 12.55 | 14.47 | 11.73 | 6.23 | 6.57 |
| LSTM | 隧道区域 | 23.83 | 13.95 | 14.23 | 26.09 | 15.76 | 18.15 | 12.35 | 6.73 | 6.92 |
| 遮挡区域 | 15.53 | 8.77 | 10.80 | 19.34 | 13.65 | 16.33 | 10.60 | 4.89 | 5.75 |
| Deep-TCN | 隧道区域 | 16.62 | 9.37 | 11.62 | 18.00 | 11.19 | 15.51 | 10.36 | 4.19 | 5.41 |
| 遮挡区域 | 13.28 | 7.72 | 8.82 | 11.72 | 6.87 | 7.63 | 7.47 | 4.38 | 4.72 |
| PTST | 隧道区域 | 13.62 | 6.48 | 6.73 | 14.14 | 5.69 | 7.20 | 9.21 | 3.87 | 4.31 |
| 遮挡区域 | 9.87 | 4.19 | 4.65 | 8.92 | 4.52 | 5.36 | 7.25 | 3.16 | 3.40 |
), ArticleFig(id=1253994405585678632, tenantId=1146029695717560320, journalId=1251234571887362144, articleId=1253994379954287410, language=CN, label=表2, caption=
PTST模型与基线算法预测误差数据对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| | X轴向误差/m | Y轴向误差/m | 高程误差/m |
|---|
| 最大值 | 平均值 | 均方根 | 最大值 | 平均值 | 均方根 | 最大值 | 平均值 | 均方根 |
|---|
| ARIMA | 隧道区域 | 56.02 | 32.63 | 38.42 | 63.85 | 36.64 | 43.25 | 18.71 | 12.09 | 15.63 |
| 遮挡区域 | 15.69 | 7.75 | 10.39 | 19.51 | 12.55 | 14.47 | 11.73 | 6.23 | 6.57 |
| LSTM | 隧道区域 | 23.83 | 13.95 | 14.23 | 26.09 | 15.76 | 18.15 | 12.35 | 6.73 | 6.92 |
| 遮挡区域 | 15.53 | 8.77 | 10.80 | 19.34 | 13.65 | 16.33 | 10.60 | 4.89 | 5.75 |
| Deep-TCN | 隧道区域 | 16.62 | 9.37 | 11.62 | 18.00 | 11.19 | 15.51 | 10.36 | 4.19 | 5.41 |
| 遮挡区域 | 13.28 | 7.72 | 8.82 | 11.72 | 6.87 | 7.63 | 7.47 | 4.38 | 4.72 |
| PTST | 隧道区域 | 13.62 | 6.48 | 6.73 | 14.14 | 5.69 | 7.20 | 9.21 | 3.87 | 4.31 |
| 遮挡区域 | 9.87 | 4.19 | 4.65 | 8.92 | 4.52 | 5.36 | 7.25 | 3.16 | 3.40 |
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