Article(id=1243867132308602934, tenantId=1146029695717560320, journalId=1149651085930835976, issueId=1243867128877658712, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-4193.2020.03.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1550764800000, receivedDateStr=2019-02-22, revisedDate=1567699200000, revisedDateStr=2019-09-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1774490634275, onlineDateStr=2026-03-26, pubDate=1585065600000, pubDateStr=2020-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774490634275, onlineIssueDateStr=2026-03-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774490634275, creator=13701087609, updateTime=1774490634275, updator=13701087609, issue=Issue{id=1243867128877658712, tenantId=1146029695717560320, journalId=1149651085930835976, year='2020', volume='42', issue='3', pageStart='1', pageEnd='156', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774490633458, creator=13701087609, updateTime=1774490695165, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1243867387754300069, tenantId=1146029695717560320, journalId=1149651085930835976, issueId=1243867128877658712, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243867387754300070, tenantId=1146029695717560320, journalId=1149651085930835976, issueId=1243867128877658712, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=149, endPage=156, ext={EN=ArticleExt(id=1243867134217011272, articleId=1243867132308602934, tenantId=1146029695717560320, journalId=1149651085930835976, language=EN, title=Research on sea surface altimetry model of airborne GNSS reflected signal, columnId=1243867133881466948, journalTitle=Haiyang Xuebao, columnName=Marine Information Science, runingTitle=null, highlight=null, articleAbstract=
Compared with shore-based GNSS-R technology, the airborne GNSS-R has the advantages of high spatial resolution, wide monitoring range, high-resolution monitoring of specific areas, and flexible height and azimuth adjustments. This paper mainly studies the airborne GNSS-R altimetry model, based on the shore-based GNSS-R code altimetry principle, corrects the atmospheric delay, antenna distance, etc., optimizes the airborne altimetry model, and uses the DTU10 global sea level average height and tide. The model verifies the accuracy of the onboard GNSS-R altimetry model. By analyzing the GNSS-R airborne data of the CSIC-IEEC in the Baltic Sea in Finland on November 11, 2011, the inversion of the experimental data at different elevation angles was successfully carried out, and the inversion of the sub-meter airborne sea surface height was successfully achieved. The conclusion that the elevation angle has a great influence on the accuracy of the altimetry results qualitatively analyzes the error range caused by the elevation angle. The results of this paper demonstrate the feasibility of sea level altimetry for airborne GNSS-R.
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相对于岸基GNSS-R技术,机载GNSS-R优势在于其空间分辨率高、监测范围广,可对特定区域范围进行高分辨率监测,兼具了灵活的高度和方位调节的同时保障了更高的数据质量。本文主要研究了机载GNSS-R测高模型,依据岸基GNSS-R码测高原理,针对大气延迟、天线距离等进行修正,优化机载测高模型,同时采用DTU10全球海面平均高度及潮汐模型验证机载GNSS-R测高模型的精度。通过分析2011年11月11日,CSIC-IEEC在芬兰波罗的海的GNSS-R机载数据,针对不同仰角下的实验数据进行反演,成功地实现了亚米级机载海面高度反演,得出仰角大小会对测高结果精度产生较大影响的结论,定性分析了仰角大小所引起的误差范围。本文的结果证明了机载GNSS-R的海面测高的可行性。
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张云,张杨阳,孟婉婷,等. 机载GNSS反射信号海面测高模型的研究[J]. 海洋学报,2020,42(3):149–156,doi:10.3969/j.issn.0253−4193.2020.03.015Zhang Yun,Zhang Yangyang,Meng Wanting, et al. Research on sea surface altimetry model of airborne GNSS reflected signal[J]. Haiyang Xuebao,2020, 42(3):149–156,doi:10.3969/j.issn.0253−4193.2020.03.015
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Geophysical Research Letters, 2017, 44(16): 8369−8376., articleTitle=null, refAbstract=null)], funds=[Fund(id=1248261377203265965, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, awardId=null, language=CN, fundingSource=国家自然科学基金(41376178,41401489);上海市大学青年教师基金(ZZHY13033)。, fundOrder=null, country=null)], companyList=[AuthorCompany(id=1248261371763253400, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, xref=1, ext=[AuthorCompanyExt(id=1248261371771642009, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, companyId=1248261371763253400, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 上海海洋大学 信息学院,上海 201306)]), AuthorCompany(id=1248261371897471137, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, xref=2, ext=[AuthorCompanyExt(id=1248261371905859747, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, companyId=1248261371897471137, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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GNSS-R group delay altimetry basic concept, figureFileSmall=u+zNSxkjdZstZJzLIqMC9Q==, figureFileBig=LMx4Z9TVestI5oR+6gqQ3A==, tableContent=null), ArticleFig(id=1248261374586020157, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图1, caption=
GNSS-R码测高技术基本概念, figureFileSmall=u+zNSxkjdZstZJzLIqMC9Q==, figureFileBig=LMx4Z9TVestI5oR+6gqQ3A==, tableContent=null), ArticleFig(id=1248261374703460674, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 2, caption=
Airborne altimetry model, figureFileSmall=+WXdsiQbxTdz8XfHE14dtg==, figureFileBig=E/ftErPdUmdqQfdOV0kCuQ==, tableContent=null), ArticleFig(id=1248261374799929669, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图2, caption=
机载测高模型, figureFileSmall=+WXdsiQbxTdz8XfHE14dtg==, figureFileBig=E/ftErPdUmdqQfdOV0kCuQ==, tableContent=null), ArticleFig(id=1248261374900592970, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 3, caption=
Flight trajectory a is the flight trajectory during the first experiment; b is the flight trajectory during the second experiment
, figureFileSmall=iBivfIlqEOUA0MrA/u8gwA==, figureFileBig=v69wJ0Ww+MAY4ijDkCwpTQ==, tableContent=null), ArticleFig(id=1248261375039005009, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图3, caption=
飞行轨迹图 a. 第一个实验期间飞行轨迹;b. 第二个实验期间飞行轨迹
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Variation of PRN12 satellite (red) and PRN25 satellite (blue) elevation angle a is the elevation angle change during the first experiment; b is the elevation angle change during the second experiment
, figureFileSmall=sckoRJOlQ8XTLFt4k1fY+A==, figureFileBig=7KN+gdv7Ds49EexNGVi2AA==, tableContent=null), ArticleFig(id=1248261375311634779, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图4, caption=
PRN12号卫星(红)及PRN25号卫星(蓝)仰角变化 a. 第一个实验期间仰角变化;b. 第二个实验期间仰角变化
, figureFileSmall=sckoRJOlQ8XTLFt4k1fY+A==, figureFileBig=7KN+gdv7Ds49EexNGVi2AA==, tableContent=null), ArticleFig(id=1248261375399715168, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 5, caption=
PRN12 (red) and PRN25 (blue) satallite specular reflection point trace a is the specular reflection point trajectory during the first experiment; b is the specular reflection point trajectory during the second experiment
, figureFileSmall=O44IOHLTPFnRwDPp6dv+UA==, figureFileBig=L4DeuSb+yIVyxkEsM2qvKg==, tableContent=null), ArticleFig(id=1248261375483601250, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图5, caption=
PRN12(红色)和PRN25(蓝色)卫星镜面反射点轨迹 a. 第一个实验期间镜面反射点轨迹;b. 第二个实验期间镜面反射点轨迹
, figureFileSmall=O44IOHLTPFnRwDPp6dv+UA==, figureFileBig=L4DeuSb+yIVyxkEsM2qvKg==, tableContent=null), ArticleFig(id=1248261375592653157, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 6, caption=
The first data period 1 s height comparison a is height comparison for high elevation angles; b is height comparison for low elevation angles
, figureFileSmall=sk4JuY7gFMrhRGjDHV2lyA==, figureFileBig=uk3wGCvqJwM+TAel2p8Rog==, tableContent=null), ArticleFig(id=1248261375710093670, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图6, caption=
第一个数据时间段1 s高度对比 a. 高仰角情况下高度对比;b. 低仰角情况下高度对比
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The first data period after 20 s average height comparison a is height comparison for high elevation angles; b is height comparison for low elevation angles
, figureFileSmall=GjbL30qBsGUMdFmjj+Phgw==, figureFileBig=YERQobhHYBsh0NA0t794ZA==, tableContent=null), ArticleFig(id=1248261375953363311, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图7, caption=
第一个数据时间段20 s平均后高度对比 a. 高仰角情况下高度对比;b. 低仰角情况下高度对比
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Inversion of height anomaly values(a)and filtered height values(b), figureFileSmall=ZyI0HFpCe+SXB8wSp7YYUA==, figureFileBig=sECMFOKuGHsE0pbfCgWK/g==, tableContent=null), ArticleFig(id=1248261376116941178, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图8, caption=
反演高度异常值(a)及筛选过后高度值(b), figureFileSmall=ZyI0HFpCe+SXB8wSp7YYUA==, figureFileBig=sECMFOKuGHsE0pbfCgWK/g==, tableContent=null), ArticleFig(id=1248261376205021566, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 9, caption=
Direct signal normal(a)and abnormal power waveform(b), figureFileSmall=vxcDk+JkJ3Ur9I9tP7ZpDg==, figureFileBig=eoJkP8JlngB8YTPMj6v/ig==, tableContent=null), ArticleFig(id=1248261376276324738, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图9, caption=
直射信号正常功率波形(a)及异常功率波形(b), figureFileSmall=vxcDk+JkJ3Ur9I9tP7ZpDg==, figureFileBig=eoJkP8JlngB8YTPMj6v/ig==, tableContent=null), ArticleFig(id=1248261376360210822, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Fig. 10, caption=
The second data period 1 s height comparison a is height comparison for high elevation angles; b is height comparison for low elevation angles
, figureFileSmall=E04RnT4jVcLKxjS4Ry26QQ==, figureFileBig=PPNP/nOKmCKnqQflboeQnw==, tableContent=null), ArticleFig(id=1248261376435708297, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图10, caption=
第二个数据时间段1 s高度对比 a. 高仰角情况下高度对比;b.低仰角情况下高度对比
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The second data period after 20 s average height comparison a is height comparison for high elevation angles; b is height comparison for low elevation angles
, figureFileSmall=0l8tQue8mIQzBfrq4Ws6cg==, figureFileBig=kPQZFRkaACJgerPbvnyJ/Q==, tableContent=null), ArticleFig(id=1248261376599286161, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=图11, caption=
第二个数据时间段20 s平均后高度对比 a.高仰角情况下高度对比;b.低仰角情况下高度对比
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Result of experimental data
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| 数据 | GPS时间 | 仰角 | 卫星号 | 低/高仰角 |
| 第一个数据时间段 | 452 008~453 350 s | 80.51°~84.29° | 12 | 高 |
| 46.60°~56.78° | 25 | 低 |
| 第二个数据时间段 | 456 700~458 099 s | 76.82°~79.93° | 25 | 高 |
| 47.30°~58.30° | 12 | 低 |
), ArticleFig(id=1248261376796418457, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=表1, caption=
实验数据结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据 | GPS时间 | 仰角 | 卫星号 | 低/高仰角 |
| 第一个数据时间段 | 452 008~453 350 s | 80.51°~84.29° | 12 | 高 |
| 46.60°~56.78° | 25 | 低 |
| 第二个数据时间段 | 456 700~458 099 s | 76.82°~79.93° | 25 | 高 |
| 47.30°~58.30° | 12 | 低 |
), ArticleFig(id=1248261376888693151, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=EN, label=Table 2, caption=
Result of experimental data
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验数据 | 卫星号 | 仰角 | 评估标准 | 1 s | 10 s | 15 s | 20 s |
| 注:Bias表示偏差,MAE表示平均绝对误差,STD表示平均绝对误差的标准偏差。 |
| 第一个数据时间段 | 12 | 高 | Bias/m | 0.009 | 0.012 | −0.006 | −0.007 |
| MAE/m | 0.890 | 0.492 | 0.462 | 0.447 |
| STD/m | 0.690 | 0.395 | 0.347 | 0.329 |
| 25 | 低 | Bias/m | 2.600 | 2.595 | 2.581 | 2.578 |
| MAE/m | 3.934 | 2.922 | 2.879 | 2.811 |
| STD/m | 3.781 | 2.078 | 1.866 | 1.789 |
| 第二个数据时间段 | 25 | 高 | Bias/m | 0.798 | 0.792 | 0.789 | 0.792 |
| MAE/m | 1.211 | 1.002 | 0.981 | 0.972 |
| STD/m | 0.874 | 0.727 | 0.721 | 0.718 |
| 12 | 低 | Bias/m | −2.362 | −2.544 | −2.543 | −2.533 |
| MAE/m | 5.900 | 3.523 | 3.226 | 3.179 |
| STD/m | 5.056 | 3.341 | 2.951 | 2.818 |
), ArticleFig(id=1248261376985162148, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1243867132308602934, language=CN, label=表2, caption=
实验数据结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验数据 | 卫星号 | 仰角 | 评估标准 | 1 s | 10 s | 15 s | 20 s |
| 注:Bias表示偏差,MAE表示平均绝对误差,STD表示平均绝对误差的标准偏差。 |
| 第一个数据时间段 | 12 | 高 | Bias/m | 0.009 | 0.012 | −0.006 | −0.007 |
| MAE/m | 0.890 | 0.492 | 0.462 | 0.447 |
| STD/m | 0.690 | 0.395 | 0.347 | 0.329 |
| 25 | 低 | Bias/m | 2.600 | 2.595 | 2.581 | 2.578 |
| MAE/m | 3.934 | 2.922 | 2.879 | 2.811 |
| STD/m | 3.781 | 2.078 | 1.866 | 1.789 |
| 第二个数据时间段 | 25 | 高 | Bias/m | 0.798 | 0.792 | 0.789 | 0.792 |
| MAE/m | 1.211 | 1.002 | 0.981 | 0.972 |
| STD/m | 0.874 | 0.727 | 0.721 | 0.718 |
| 12 | 低 | Bias/m | −2.362 | −2.544 | −2.543 | −2.533 |
| MAE/m | 5.900 | 3.523 | 3.226 | 3.179 |
| STD/m | 5.056 | 3.341 | 2.951 | 2.818 |
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