Article(id=1322506703720010683, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322506567065383670, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2024.07.357, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1721577600000, receivedDateStr=2024-07-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793239769153, onlineDateStr=2026-10-29, pubDate=1752508800000, pubDateStr=2025-07-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793239769153, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793239769153, creator=13701087609, updateTime=1793239769153, updator=13701087609, issue=Issue{id=1322506567065383670, tenantId=1146029695717560320, journalId=1281212831689347082, year='2025', volume='45', issue='7', pageStart='661', pageEnd='770', issueExtLink='null', onlineDate='null', pubDate='1752508800000', pubDateStr='2025-07-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793239736572, creator='13701087609', updateTime=1793239736572, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=754, endPage=757, ext={EN=ArticleExt(id=1322506703933920188, articleId=1322506703720010683, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Reducing GRACE North-South Striping Noise Using the Moving Average Spatial Filter, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The gravity recovery and climate experiment(GRACE) mission and followed missions can provide unconstrained monthly time-varying gravity fields that are polluted by north-south striping noise. This noise is defined as a quasi-periodic oscillation along longitude, propagating continuously along latitude. Aiming at this characteristic, we introduce the moving average smoothing technique to suppress the noise in spatial domain, implementing different degrees of smoothing based on the different prior knowledge between ocean and land. Then, the proposed method is compared with common DDK filters in spatial, frequency, and time domains, showing a comparable filtering effect. The evaluation results show that the noise level of proposed method in ocean is about 20 mm, which is lower than that of DDK5-DDK7(26.20-50.25 mm). Although there are limitations such as the setting of sliding window size depends on experience, the proposed method does not need to know the variance information between signal and noise in advance and can provide a new idea for the design of novel filters.
, authors=Songhui ZHAN
1, 2, 3, authorsList=Songhui ZHAN, authorCompany=null, correspAuthors=null, authorNote=
, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., 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, fund=null), CN=ArticleExt(id=1322506704961524677, articleId=1322506703720010683, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=滑动平均空域滤波器处理GRACE南北条带误差, columnId=1322506242858271689, journalTitle=大地测量与地球动力学, columnName=地球物理解释, runingTitle=null, highlight=null, articleAbstract=
重力恢复与气候实验(gravity recovery and climate experiment, GRACE)卫星任务及后续任务的无约束月时变重力场被南北条带噪声污染。该噪声被定义为沿经度方向的准周期振荡,并沿纬度方向持续传播。鉴于此特性,本文引入滑动平均平滑技术在空域抑制该噪声,并基于海陆差异的先验知识实施不同程度的平滑。将该方法与常用的DDK滤波器在空域、频域和时域进行对比,结果显示,两者滤波效果相当。评估结果表明,本文方法在海洋区域的噪声水平约为20 mm,小于DDK5~DDK7噪声水平(26.20~50.25 mm)。尽管存在滑动窗口大小设置依赖经验等局限性,但本文方法无需预先确定信号与噪声的方差信息,可为新型滤波器的设计提供新思路。
, authors=詹松辉
1, 2, 3, authorsList=詹松辉, authorCompany=null, correspAuthors=null, authorNote=
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版权所有,未经授权,不得转载。, copyrightOwner=大地测量与地球动力学编辑部, extLink=null, articleAbsUrl=null, sourceXml=oCDWtzLe9RyV36xdPHJo3g==, magXml=Cm99s4wBJ0kDw6yELOCz4w==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=BHyVNppITThybRMa5d2urA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=Z1Bji0kpiKirtYOUQo3G3Q==, mapNumber=null, fund=null)}, authors=[Author(id=1322506705523561424, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506703720010683, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=shzhan@gzpi.com.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322506705645196244, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506703720010683, authorId=1322506705523561424, language=EN, stringName=Songhui ZHAN, firstName=Songhui, middleName=null, lastName=ZHAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=1 Guangzhou Urban Planning and Design Survey Research Institute Co Ltd, 10 Jianshe Road, Guangzhou 510060, China
2 Collaborative Innovation Center for Natural Resources Planning and Marine Technology of Guangzhou, 10 Jianshe Road, Guangzhou 510060, China
3 Guangdong Enterprise Key Laboratory for Urban Sensing, Monitoring and Early Warning, 10 Jianshe Road, Guangzhou 510060, China, bio={"content":"
ZHAN Songhui, engineer, majors in surveying data processing, E-mail: shzhan@gzpi.com.cn
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ZHAN Songhui, engineer, majors in surveying data processing, E-mail: shzhan@gzpi.com.cn
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1, 2, 3, address=1 广州市城市规划勘测设计研究院有限公司, 广州市建设大马路10号, 510060
2 广州市资源规划和海洋科技协同创新中心, 广州市建设大马路10号, 510060
3 广东省城市感知与监测预警企业重点实验室, 广州市建设大马路10号, 510060, bio={"content":"
詹松辉,工程师,主要研究方向为测量数据处理,E-mail: shzhan@gzpi.com.cn
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詹松辉,工程师,主要研究方向为测量数据处理,E-mail: shzhan@gzpi.com.cn
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球谐系数振幅和形式误差以及不同方案对球谐系数的调整, figureFileSmall=hWrJIMroWecYCVCqI6J67g==, figureFileBig=I/UPHBHDW3H6ETUN5DQgRA==, tableContent=null), ArticleFig(id=1322506706962207715, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506703720010683, language=EN, label=Fig. 3, caption=
Equivalent water height time series, figureFileSmall=GlHmdONMnkHiOJmi/t7Wvg==, figureFileBig=9Yf+fJzVkV+iR3A6vJ291w==, tableContent=null), ArticleFig(id=1322506707079648228, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506703720010683, language=CN, label=图3, caption=
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