Article(id=1263818963960644173, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, articleNumber=null, orderNo=null, doi=10.19693/j.issn.1673-3185.04263, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730908800000, receivedDateStr=2024-11-07, revisedDate=1742832000000, revisedDateStr=2025-03-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1779247521628, onlineDateStr=2026-05-20, pubDate=1777478400000, pubDateStr=2026-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1779247521628, onlineIssueDateStr=2026-05-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1779247521628, creator=13041195026, updateTime=1779247521628, updator=13041195026, issue=Issue{id=1263818962224165389, tenantId=1146029695717560320, journalId=1263530845441638439, year='2026', volume='21', issue='2', pageStart='1', pageEnd='444', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1779247521215, creator=13041195026, updateTime=1779247861438, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1263820389638070544, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1263820389638070545, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=174, endPage=183, ext={EN=ArticleExt(id=1263818964476543569, articleId=1263818963960644173, tenantId=1146029695717560320, journalId=1263530845441638439, language=EN, title=Fusion and application of sectional underwater track based on the functional reconstruction algorithm, columnId=1263818964086436367, journalTitle=Chinese Journal of Ship Research, columnName=Overall Design Technology of Unmanned Underwater Systems, runingTitle=null, highlight=null, articleAbstract=
Objective The underwater dynamic navigation based on the sectional observation system generates multi-source and heterogeneous data, creating crossed or forked tracks due to asynchronous time delay and unknown system errors. This makes it difficult to represent continuous navigation processes and identify local characteristic points. To address this issue, a functional reconstruction algorithm for underwater data fusion is proposed.
Method The polynomial constraint fusion (PCF) method and the spline function fusion (SFF) method are employed to process track data collected via sectional observations. These methods effectively integrate the full underwater track and address issues such as discontinuous dynamic parameter sequences and ambiguous data in overlapping section.
Results Numerical simulations show that both PCF and SFF methods can capture the main characteristics of underwater dynamic motion and produce accurate and continuous tracks. Compared with the general data fusion (GDF) method, the PCF and SFF yield smoother and more continuous data series, enabling a more precise representation of motion in overlapping regions. Compared with the moving average filter algorithm, the fusion processing results based on the functional reconstruction algorithm and the filter algorithm both show an optimizing performance in accuracy and smoothness. In terms of velocity and acceleration consistency, the functional reconstruction algorithm is better than the filter algorithm. Verified by sea trials, the SFF and the PCF were used to obtain the re-analysis track in the observed section with velocity estimation errors within 5% at the characteristic points, and also obtain the predicted track in subsequent sections with errors within 15%.
Conclusion The proposed method shows application values for processing multi-source and heterogeneous data in complex underwater motion scenarios, and is also effective for the short-term underwater navigation estimation.
, correspAuthors=Xu ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Chinese Journal of Ship Research. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Xu ZHANG), CN=ArticleExt(id=1263819012392271905, articleId=1263818963960644173, tenantId=1146029695717560320, journalId=1263530845441638439, language=CN, title=基于函数化重构算法的多区间水下航迹融合与应用, columnId=1263818964476506641, journalTitle=中国舰船研究, columnName=水下无人系统总体设计技术, runingTitle=null, highlight=null, articleAbstract=
目的 多区间观测的水下动态航行过程产生多源异类数据,因时间异步、系统误差未知等因素导致航迹交叉或分叉,造成连续变化过程难以刻画以及局部特征点难以识别。针对这一问题,提出一种基于函数化重构的水下数据融合算法。
方法 通过选取多项式函数与样条函数进行匹配分析、建模设计及系数辨识,实现水下全航段轨迹的一致性表达,解决高动态参数序列变化不连续以及重合段数据模糊的问题。
结果 数值分析结果表明,基于多项式函数和样条函数的融合结果比数据级融合结果更加光滑、连续,合理刻画了数据重合段的状态变化,并保留了非重合段的运动特征。经与滑动平均滤波算法比对,基于函数化重构的融合处理与滑动滤波处理均能够提供准确、平滑的参数序列,但在速度与加速度的一致性表达方面,前者相对于后者更有优势。经海上实验验证,综合运用多项式函数与样条函数融合方法,在有观测数据航段获得了特征点速度精度优于5%的再分析航迹,在后续无观测数据航段获得了特征点速度精度优于15%的预测航迹。
结论 所提方法对于水下复杂动态航行的多源、多区间数据的处理与分析有一定应用价值,也适用于航行状态的短时估计。
, correspAuthors=张旭, authorNote=null, correspAuthorsNote=
* 张旭
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*, address=中国人民解放军91550部队 43分队,辽宁 大连 116023, bio={"content":"
张旭,男,1982年生
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Beijing: Science Press, 2024 (in Chinese)., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1263819013235327023, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, xref=null, ext=[AuthorCompanyExt(id=1263819013260492848, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, companyId=1263819013235327023, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Division 43, The 91550 Unit of PLA, Dalian 116023, China), AuthorCompanyExt(id=1263819013344378930, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, companyId=1263819013235327023, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国人民解放军91550部队 43分队,辽宁 大连 116023)])], figs=[ArticleFig(id=1263819021254836347, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.1, caption=
Sketch of sectional observation for underwater navigation, figureFileSmall=np+tbUUhhFqOREke5YfHew==, figureFileBig=X2HSXuJFUvWDimfPfH0jvQ==, tableContent=null), ArticleFig(id=1263819021426802815, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图1, caption=
水下航行多区间观测示意图, figureFileSmall=np+tbUUhhFqOREke5YfHew==, figureFileBig=X2HSXuJFUvWDimfPfH0jvQ==, tableContent=null), ArticleFig(id=1263819021930119305, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.2, caption=
Simulated data series of position and velocity, figureFileSmall=6DqpxXabzo5BEPP+5hV1vw==, figureFileBig=lFBMaey/rYjcSv49wFax3w==, tableContent=null), ArticleFig(id=1263819022353744017, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图2, caption=
仿真模拟的位置和速度数据序列, figureFileSmall=6DqpxXabzo5BEPP+5hV1vw==, figureFileBig=lFBMaey/rYjcSv49wFax3w==, tableContent=null), ArticleFig(id=1263819022777368724, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.3, caption=
Parameter series of position and velocity based on GDF method, figureFileSmall=c6LDtJmn4gaU1u2AjtaPpA==, figureFileBig=2zE8bbPiYkib+T4dZ0yawg==, tableContent=null), ArticleFig(id=1263819022961918107, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图3, caption=
位置和速度序列的数据级融合结果, figureFileSmall=c6LDtJmn4gaU1u2AjtaPpA==, figureFileBig=2zE8bbPiYkib+T4dZ0yawg==, tableContent=null), ArticleFig(id=1263819023125495965, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.4, caption=
Parameter series of position and velocity based on PCF method, figureFileSmall=kTSCLuWSc7H2mS3aisux8Q==, figureFileBig=KhQjJ5r5HWp/pbsbKhIqqw==, tableContent=null), ArticleFig(id=1263819023402320036, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图4, caption=
位置和速度序列的多项式约束融合结果, figureFileSmall=kTSCLuWSc7H2mS3aisux8Q==, figureFileBig=KhQjJ5r5HWp/pbsbKhIqqw==, tableContent=null), ArticleFig(id=1263819025210065064, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.5, caption=
Parameter series of position and velocity based on SFF method, figureFileSmall=7LSkrPeUiqTg+d0QwDoSwg==, figureFileBig=dyo69owWan3klqChUfoVlA==, tableContent=null), ArticleFig(id=1263819025499472046, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图5, caption=
位置和速度序列的样条函数融合结果, figureFileSmall=7LSkrPeUiqTg+d0QwDoSwg==, figureFileBig=dyo69owWan3klqChUfoVlA==, tableContent=null), ArticleFig(id=1263819025759518897, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.6, caption=
Comparison results based on fusion methods and the moving-average filter method, figureFileSmall=soqnXoIwqw+MAiexsKh9Ag==, figureFileBig=2QDBIZQ3FjU4lZCVwbs+JQ==, tableContent=null), ArticleFig(id=1263819025931485367, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图6, caption=
融合结果与滑动滤波结果对比, figureFileSmall=soqnXoIwqw+MAiexsKh9Ag==, figureFileBig=2QDBIZQ3FjU4lZCVwbs+JQ==, tableContent=null), ArticleFig(id=1263819026321555644, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.7, caption=
Acceleration series based on different methods, figureFileSmall=LZoYtmNaEd7FgDpz89kA/A==, figureFileBig=9C7qkWeAAki8xDgwRbI7MQ==, tableContent=null), ArticleFig(id=1263819026636128450, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图7, caption=
基于不同方法计算的加速度曲线比较, figureFileSmall=LZoYtmNaEd7FgDpz89kA/A==, figureFileBig=9C7qkWeAAki8xDgwRbI7MQ==, tableContent=null), ArticleFig(id=1263819026891980999, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.8, caption=
Sectional parameter series of position and velocity based on PCF method, figureFileSmall=MeCORdu3HOLc9RJr0G8+ag==, figureFileBig=Jm0oSVxyavlGUDDNQ00Zpg==, tableContent=null), ArticleFig(id=1263819027214942413, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图8, caption=
位置和速度序列的多项式约束分段融合结果, figureFileSmall=MeCORdu3HOLc9RJr0G8+ag==, figureFileBig=Jm0oSVxyavlGUDDNQ00Zpg==, tableContent=null), ArticleFig(id=1263819027458212049, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.9, caption=
Extrapolated parameter series of position and velocity based on PCF method, figureFileSmall=LNlm24WiGHgGsIPimOsMMQ==, figureFileBig=AhTX0ibacSPTsrrx3uhqeQ==, tableContent=null), ArticleFig(id=1263819027718258902, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图9, caption=
位置和速度序列的多项式约束外推结果, figureFileSmall=LNlm24WiGHgGsIPimOsMMQ==, figureFileBig=AhTX0ibacSPTsrrx3uhqeQ==, tableContent=null), ArticleFig(id=1263819027965722842, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Fig.10, caption=
Sectional curves of identified characteristic points based on fusion results, figureFileSmall=loAyYn+dxNfb1cABkWqWgA==, figureFileBig=BeQnDAUdVeW9hnYXHwCi+A==, tableContent=null), ArticleFig(id=1263819029664415966, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=图10, caption=
基于融合结果的特征点识别分段曲线, figureFileSmall=loAyYn+dxNfb1cABkWqWgA==, figureFileBig=BeQnDAUdVeW9hnYXHwCi+A==, tableContent=null), ArticleFig(id=1263819029827993826, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=EN, label=Tab.1, caption=
RMSE of fusion results compared with observed data series
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 位置均方根误差/m | | 速度均方根误差/(m·s−1) |
| 第1阶段非重合段 | 重合段 | 第2阶段非重合段 | | 第1阶段非重合段 | 重合段 | 第2阶段非重合段 |
| 数据级融合 | 0 | 1.163 | 0 | | 0 | 1.107 | 0 |
| 多项式约束融合 | 0.066 | 1.190 | 0.171 | | 0.048 | 1.119 | 0.171 |
| 样条函数融合 | 0.081 | 1.166 | 0.135 | | 0.079 | 1.114 | 0.109 |
| 5点滑动平均滤波 | 0.031 | 1.163 | 0.076 | | 0.227 | 1.111 | 0.181 |
| 16点滑动平均滤波 | 0.065 | 1.157 | 0.133 | | 0.103 | 1.119 | 0.148 |
| 32点滑动平均滤波 | 0.154 | 1.141 | 0.189 | | 0.262 | 1.141 | 0.353 |
), ArticleFig(id=1263819029983183077, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818963960644173, language=CN, label=表1, caption=
融合结果相对于观测数据的均方根误差统计值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 位置均方根误差/m | | 速度均方根误差/(m·s−1) |
| 第1阶段非重合段 | 重合段 | 第2阶段非重合段 | | 第1阶段非重合段 | 重合段 | 第2阶段非重合段 |
| 数据级融合 | 0 | 1.163 | 0 | | 0 | 1.107 | 0 |
| 多项式约束融合 | 0.066 | 1.190 | 0.171 | | 0.048 | 1.119 | 0.171 |
| 样条函数融合 | 0.081 | 1.166 | 0.135 | | 0.079 | 1.114 | 0.109 |
| 5点滑动平均滤波 | 0.031 | 1.163 | 0.076 | | 0.227 | 1.111 | 0.181 |
| 16点滑动平均滤波 | 0.065 | 1.157 | 0.133 | | 0.103 | 1.119 | 0.148 |
| 32点滑动平均滤波 | 0.154 | 1.141 | 0.189 | | 0.262 | 1.141 | 0.353 |
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