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Retrieval of the Hadley circulation boundaries at regional scales using global positioning system-radio occultation measurements 利用全球定位系统-无线电掩星测量在区域尺度上检索哈德利环流边界
1区 地球科学
GPS Solutions Pub Date : 2023-11-04 DOI: 10.1007/s10291-023-01561-y
U. Anjana, Sneha Susan Mathew, Karanam Kishore Kumar
{"title":"Retrieval of the Hadley circulation boundaries at regional scales using global positioning system-radio occultation measurements","authors":"U. Anjana, Sneha Susan Mathew, Karanam Kishore Kumar","doi":"10.1007/s10291-023-01561-y","DOIUrl":"https://doi.org/10.1007/s10291-023-01561-y","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"85 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135774099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comprehensive classification assessment of GNSS observation data quality by fusing k-means and KNN algorithms 融合k-means和KNN算法的GNSS观测数据质量综合分类评估
1区 地球科学
GPS Solutions Pub Date : 2023-11-01 DOI: 10.1007/s10291-023-01557-8
Mengyuan Li, Guanwen Huang, Le Wang, Wei Xie
{"title":"Comprehensive classification assessment of GNSS observation data quality by fusing k-means and KNN algorithms","authors":"Mengyuan Li, Guanwen Huang, Le Wang, Wei Xie","doi":"10.1007/s10291-023-01557-8","DOIUrl":"https://doi.org/10.1007/s10291-023-01557-8","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"6 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135221510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of real-time GNSS-R software-defined receiver for coastal altimetry using GPS/BDS/QZSS signals 基于GPS/BDS/QZSS信号的实时GNSS-R软件定义海岸测高接收机设计
1区 地球科学
GPS Solutions Pub Date : 2023-11-01 DOI: 10.1007/s10291-023-01563-w
Xinyue Meng, Fan Gao, Tianhe Xu, Yunqiao He, Nazi Wang, Baojiao Ning
{"title":"Design of real-time GNSS-R software-defined receiver for coastal altimetry using GPS/BDS/QZSS signals","authors":"Xinyue Meng, Fan Gao, Tianhe Xu, Yunqiao He, Nazi Wang, Baojiao Ning","doi":"10.1007/s10291-023-01563-w","DOIUrl":"https://doi.org/10.1007/s10291-023-01563-w","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135222497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topside ionospheric TEC modeling using multiple LEO satellites based on genetic algorithm-optimized machine learning models 基于遗传算法优化机器学习模型的多颗LEO卫星上层电离层TEC建模
1区 地球科学
GPS Solutions Pub Date : 2023-11-01 DOI: 10.1007/s10291-023-01565-8
Yi Han, Lei Wang, Ruizhi Chen, Wenju Fu, Tao Li, Guangrui Liu, Haitao Zhou
{"title":"Topside ionospheric TEC modeling using multiple LEO satellites based on genetic algorithm-optimized machine learning models","authors":"Yi Han, Lei Wang, Ruizhi Chen, Wenju Fu, Tao Li, Guangrui Liu, Haitao Zhou","doi":"10.1007/s10291-023-01565-8","DOIUrl":"https://doi.org/10.1007/s10291-023-01565-8","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"67 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating GNSS satellite clock error to provide a new final product and real-time services 估算GNSS卫星时钟误差，提供新的最终产品和实时服务
1区 地球科学
GPS Solutions Pub Date : 2023-10-31 DOI: 10.1007/s10291-023-01558-7
Haojun Li, Xiaoming Li, Jingxin Xiao
{"title":"Estimating GNSS satellite clock error to provide a new final product and real-time services","authors":"Haojun Li, Xiaoming Li, Jingxin Xiao","doi":"10.1007/s10291-023-01558-7","DOIUrl":"https://doi.org/10.1007/s10291-023-01558-7","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"219 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135863497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Undifferenced processing of COSMIC-2 radio occultation measurements with 1-Hz LEO clock corrections 1 hz LEO时钟校正下COSMIC-2射电掩星测量的无差别处理
1区 地球科学
GPS Solutions Pub Date : 2023-10-31 DOI: 10.1007/s10291-023-01559-6
Sheng Guo, Shaocheng Zhang, Xiangguang Meng, Yunlong Wu, Yidong Lou, Jian Lin
{"title":"Undifferenced processing of COSMIC-2 radio occultation measurements with 1-Hz LEO clock corrections","authors":"Sheng Guo, Shaocheng Zhang, Xiangguang Meng, Yunlong Wu, Yidong Lou, Jian Lin","doi":"10.1007/s10291-023-01559-6","DOIUrl":"https://doi.org/10.1007/s10291-023-01559-6","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016 2001-2016年希腊GPS数据分析与大地速度场调查
1区 地球科学
GPS Solutions Pub Date : 2023-10-30 DOI: 10.1007/s10291-023-01549-8
Stylianos Bitharis, Christos Pikridas, Aristeidis Fotiou, Dimitrios Rossikopoulos
{"title":"GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016","authors":"Stylianos Bitharis, Christos Pikridas, Aristeidis Fotiou, Dimitrios Rossikopoulos","doi":"10.1007/s10291-023-01549-8","DOIUrl":"https://doi.org/10.1007/s10291-023-01549-8","url":null,"abstract":"Abstract In this study, an updated crustal velocity field for the Greece area was estimated using a time series analysis that covers a duration of 16 years (2001–2016) from 227 Global Navigation Satellite System (GNSS) permanent stations. The GPS processing was carried out using GNSS Analysis software at MIT (GAMIT) and the velocity field expressed with respect to Eurasian plate. For the time series analysis, we applied a robust Median Interannual Difference Adjusted for Skewness trend estimator to mitigate the effects of discontinuities due to geophysical phenomena on the estimation of geodetic velocities and their uncertainties. The main earthquake events that occurred in the GPS time series analysis in the study area are analyzed, providing the co-seismic displacements in the permanent GNSS stations. We also compare our geodetic velocities with five previous publications, where we found consistency at the mm/year level, leading to reliable results for the geodynamic behavior of the Greek area, providing a dense velocity field.","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"308 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metaheuristic-based stochastic models for GNSS relative positioning planning 基于元启发式的GNSS相对定位规划随机模型
1区 地球科学
GPS Solutions Pub Date : 2023-10-29 DOI: 10.1007/s10291-023-01562-x
Ismael Érique Koch, Ivandro Klein, Luiz Gonzaga, Vinicius Francisco Rofatto, Marcelo Tomio Matsuoka, João Francisco Galera Monico, Maurício Roberto Veronez
{"title":"Metaheuristic-based stochastic models for GNSS relative positioning planning","authors":"Ismael Érique Koch, Ivandro Klein, Luiz Gonzaga, Vinicius Francisco Rofatto, Marcelo Tomio Matsuoka, João Francisco Galera Monico, Maurício Roberto Veronez","doi":"10.1007/s10291-023-01562-x","DOIUrl":"https://doi.org/10.1007/s10291-023-01562-x","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"3 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136157352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stochastic modeling of the receiver clock parameter in Galileo-only and multi-GNSS PPP solutions 仅伽利略和多gnss PPP解决方案中接收机时钟参数的随机建模
1区 地球科学
GPS Solutions Pub Date : 2023-10-27 DOI: 10.1007/s10291-023-01556-9
Marcin Mikoś, Kamil Kazmierski, Tomasz Hadas, Krzysztof Sośnica
{"title":"Stochastic modeling of the receiver clock parameter in Galileo-only and multi-GNSS PPP solutions","authors":"Marcin Mikoś, Kamil Kazmierski, Tomasz Hadas, Krzysztof Sośnica","doi":"10.1007/s10291-023-01556-9","DOIUrl":"https://doi.org/10.1007/s10291-023-01556-9","url":null,"abstract":"Abstract In Precise Point Positioning (PPP), the receiver clock parameter is typically estimated independently in each observation epoch, which increases the noise of the estimated station coordinates and troposphere parameters due to correlations. Applying stochastic modeling to the receiver clock parameter stabilizes PPP solutions and reduces clock noise for the time transfer. However, the receiver clock modeling is possible only for the GNSS receivers connected to the utmost stable atomic clocks. We propose receiver clock modeling that involves the Markov stochastic process in the form of a random walk. We test different levels of random walk constraints for GNSS stations equipped with different types of clocks for Galileo-only and multi-GNSS solutions in kinematic and static PPP. In multi-GNSS solutions, the common clock parameter is derived with inter-system biases (ISBs). This raises the question of the constraints that should be imposed on the common clock only or also on the ISBs. We found that similar results can be achieved by imposing constraints on the common clock parameter and estimating ISB as a constant parameter and when constraining the common clock parameter and ISBs with a ratio of 1:100. Other ratios of clock-to-ISB constraints, such as 1:1 and 1:10, give inferior results. In the kinematic PPP, stochastic clock modeling has a marginal impact on the North and East coordinate components, whereas the Up component is substantially improved for GNSS receivers equipped with hydrogen masers. In the static PPP, the clock modeling improves the time transfer, due to the reduced noise of the clocks.","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A system for measuring the scintillation index based on the results of monitoring of small-scale fluctuations in the total electron content of the ionosphere 根据电离层总电子含量的小尺度波动监测结果测量闪烁指数的一种系统
1区 地球科学
GPS Solutions Pub Date : 2023-10-26 DOI: 10.1007/s10291-023-01550-1
Vladimir P. Pashintsev, Mark V. Peskov, Mikhail A. Senokosov, Dmitry A. Mikhailov, Alexander D. Skorik
{"title":"A system for measuring the scintillation index based on the results of monitoring of small-scale fluctuations in the total electron content of the ionosphere","authors":"Vladimir P. Pashintsev, Mark V. Peskov, Mikhail A. Senokosov, Dmitry A. Mikhailov, Alexander D. Skorik","doi":"10.1007/s10291-023-01550-1","DOIUrl":"https://doi.org/10.1007/s10291-023-01550-1","url":null,"abstract":"","PeriodicalId":12788,"journal":{"name":"GPS Solutions","volume":"42 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136382153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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