Article(id=1322506542939755478, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322506406058635943, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2024.11.540, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1732636800000, receivedDateStr=2024-11-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793239730820, onlineDateStr=2026-10-29, pubDate=1763136000000, pubDateStr=2025-11-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793239730820, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793239730820, creator=13701087609, updateTime=1793239730820, updator=13701087609, issue=Issue{id=1322506406058635943, tenantId=1146029695717560320, journalId=1281212831689347082, year='2025', volume='45', issue='11', pageStart='1101', pageEnd='1210', issueExtLink='null', onlineDate='null', pubDate='1763136000000', pubDateStr='2025-11-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793239698184, creator='13701087609', updateTime=1793239698184, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1121, endPage=1126, 1184, ext={EN=ArticleExt(id=1322506543136887767, articleId=1322506542939755478, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Various Spherical Harmonic Analysis and Spherical Harmonic Synthesis Algorithms and Their Software Design, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
We derive five spherical harmonic analysis algorithms in detail and develop a user-friendly and easy-to-operate practical software using the scientific computing language MATLAB. To validate the performance of five algorithms, we conduct a numerical analysis of the computational efficiency and accuracy of fast Fourier transform(FFT), least squares(LS), weighted least squares(WLS), approximate quadrature(AQ), and first Neumann method(FNM) algorithms at harmonic degrees of 180, 360, 720, 1 800 and 2 160, using the global topographic data DTM2006.0 as a case study. The results show that the AQ algorithm performs best in terms of computational efficiency, while the LS algorithm achieves the highest precision. The residuals of all five algorithms approximately follow a normal distribution, indicating that none of five algorithms exhibit systematic biases.
, authors=Xiaoyu TANG
1, Wenjin CHEN
1, *, Xiao GONG
2, Xiaolong TAN
1, authorsList=Xiaoyu TANG, Wenjin CHEN, Xiao GONG, Xiaolong TAN, authorCompany=null, correspAuthors=Wenjin CHEN, authorNote=
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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=1322506544672003044, articleId=1322506542939755478, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=多种球谐分析与球谐综合算法研究及其软件设计, 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=
详细推导5种球谐分析算法, 并采用科学计算语言MATLAB开发一款界面友好且易于操作的实用软件。为验证算法性能, 以全球地形数据DTM2006.0为例, 对快速傅里叶变换(FFT)算法、最小二乘(LS)算法、加权最小二乘(WLS)算法、近似正交(AQ)算法、第一黎曼算法(FNM)在180、360、720、1 800和2 160阶的计算效率和精度进行数值分析。结果表明, AQ算法在计算效率方面表现最优异, 而LS算法计算精度最高; 5种算法的残差都近似服从正态分布, 表明5种算法均无系统性偏差。
, authors=唐晓雨
1, 陈文进
1, *, 龚枭
2, 谭小龙
1, authorsList=唐晓雨, 陈文进, 龚枭, 谭小龙, authorCompany=null, correspAuthors=陈文进, 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=crhKTzkK23hVDGKquCQwWw==, magXml=G4+ZEIZws2F3/8+VYNW/hQ==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=Z8SmVekIiCuVB3SlEX+XpQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=mPjT1C57Z8XTSaJbABBUXA==, mapNumber=null, fund=null)}, authors=[Author(id=1322506546580411372, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506542939755478, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=6720230182@mail.jxust.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322506546702046190, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506542939755478, authorId=1322506546580411372, language=EN, stringName=Xiaoyu TANG, firstName=Xiaoyu, middleName=null, lastName=TANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1 School of Civil and Surveying and Mapping Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China, bio={"content":"
TANG Xiaoyu, postgraduate, majors in geodesy and surveying engineering, E-mail: 6720230182@mail.jxust.edu.cn
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TANG Xiaoyu, postgraduate, majors in geodesy and surveying engineering, E-mail: 6720230182@mail.jxust.edu.cn
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唐晓雨, 硕士生, 主要从事大地测量学与测量工程研究, E-mail: 6720230182@mail.jxust.edu.cn
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Computation time statistics for spherical harmonic analysis of different algorithms at various degrees
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| 算法 | 180阶 | 360阶 | 720阶 | 1 800阶 | 2 160阶 |
| FFT | 0.025 | 0.730 | 4.910 | 62.810 | 111.910 |
| LS | 0.110 | 0.980 | 14.040 | 277.690 | 423.190 |
| WLS | 0.310 | 2.737 | 24.200 | 716.190 | 1 231.390 |
| AQ | 0.026 | 0.340 | 3.860 | 40.510 | 84.690 |
| FNM | 0.026 | 0.360 | 3.710 | 43.890 | 90.730 |
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不同阶次下各算法的球谐分析计算时间统计
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| 算法 | 180阶 | 360阶 | 720阶 | 1 800阶 | 2 160阶 |
| FFT | 0.025 | 0.730 | 4.910 | 62.810 | 111.910 |
| LS | 0.110 | 0.980 | 14.040 | 277.690 | 423.190 |
| WLS | 0.310 | 2.737 | 24.200 | 716.190 | 1 231.390 |
| AQ | 0.026 | 0.340 | 3.860 | 40.510 | 84.690 |
| FNM | 0.026 | 0.360 | 3.710 | 43.890 | 90.730 |
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Elevation values of spherical harmonic coefficients obtained from multiple algorithms after spherical harmonic synthesis
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| 算法 | min | max | mean | STD |
| DTM2006.0 | -7 923.6 | 5 542.2 | -1 890.7 | 2 629.2 |
| FFT | -7 948.1 | 5 592.2 | -1 891.9 | 2 637.0 |
| LS | -7 923.6 | 5 542.2 | -1 890.7 | 2 629.2 |
| WLS | -7 936.2 | 5 534.9 | -1 890.7 | 2 629.3 |
| AQ | -7 940.2 | 5 537.1 | -1 891.9 | 2 637.0 |
| FNM | -7 939.7 | 5 537.9 | -1 891.1 | 2 629.4 |
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多种算法得到的球谐系数经球谐综合后的高程值
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| 算法 | min | max | mean | STD |
| DTM2006.0 | -7 923.6 | 5 542.2 | -1 890.7 | 2 629.2 |
| FFT | -7 948.1 | 5 592.2 | -1 891.9 | 2 637.0 |
| LS | -7 923.6 | 5 542.2 | -1 890.7 | 2 629.2 |
| WLS | -7 936.2 | 5 534.9 | -1 890.7 | 2 629.3 |
| AQ | -7 940.2 | 5 537.1 | -1 891.9 | 2 637.0 |
| FNM | -7 939.7 | 5 537.9 | -1 891.1 | 2 629.4 |
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