Refinement of BKlob model based on multi-source data

LIU Jialong; ZHU Yongxing; JIA Xiaolin; SONG Shuli; CHENG Na

doi:10.12265/j.gnss.2023092

Volume 48 Issue 3

Jun. 2023

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LIU Jialong, ZHU Yongxing, JIA Xiaolin, SONG Shuli, CHENG Na. Refinement of BKlob model based on multi-source data[J]. GNSS World of China, 2023, 48(3): 62-71. doi: 10.12265/j.gnss.2023092

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LIU Jialong, ZHU Yongxing, JIA Xiaolin, SONG Shuli, CHENG Na. Refinement of BKlob model based on multi-source data[J]. GNSS World of China, 2023, 48(3): 62-71. doi: 10.12265/j.gnss.2023092

Citation:

LIU Jialong, ZHU Yongxing, JIA Xiaolin, SONG Shuli, CHENG Na. Refinement of BKlob model based on multi-source data[J]. GNSS World of China, 2023, 48(3): 62-71. doi: 10.12265/j.gnss.2023092

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Refinement of BKlob model based on multi-source data

doi: 10.12265/j.gnss.2023092

LIU Jialong^{1, 2
,},
ZHU Yongxing^{3, 4
,},
JIA Xiaolin^{3, 4
,},
SONG Shuli^{1, 2
,
,},
CHENG Na^5
,

1.
Shanghai Observatory, Chinese Academy of Sciences, Shanghai 200030, China
2.
University of Chinese Academy of Sciences, Beijing 100080, China
3.
Xi’an Institute of Surveying and Mapping, Xi’an 710054, China
4.
State Key Laboratory of Geographic Information Engineering, Xi’an 710054, China
5.
School of Surveying and Geo-infomatics, Shandong Jianzhu University, Ji’nan 250101, China

Received Date: 2023-04-18

Abstract

Abstract

BDS-3 has launched global services, and the service area of the BDS Klobuchar (BDSklob) model has also expanded to a global scale. The global performance of the BDSklob model has also attracted great attention. In response to the low accuracy of the BDSklob model outside the service area and abnormal correction in polar regions during the BDS-2 period, this paper proposes a new BDSklob model refinement scheme-multi-source data refinement method-based on parameter refinement method, using empirical models IRI-Plas-2017, BDGIM model, and multi-source data from CODE’s GIM products. The results show that the refinement methods of various data sources have significantly improved the performance of the BDSklob model, especially in polar regions; BDSklob_ C (GIM product with CODE data source) has the highest processing accuracy; BDSklob_ B (data source is BDGIM) takes the second place in accuracy, but without the help of external data sources, refinement processing can be completed in the Beidou system; BDSklob_ the accuracy of I (data source is IRI model) is slightly poor, but based on the predictive ability of empirical models, it can meet the needs of real-time refinement processing.
- BDS Klobuchar model,
- refinement,
- IRI model,
- GIM,
- broadcast ionospheric model

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References

[1]	KLOBUCHAR J A. Ionospheric time-delay algorithm for single-frequency GPS users[J]. IEEE transactions on aerospace and electronic systems, 1987(3): 325-331. DOI: 10.1109/TAES.1987.310829
[2]	SCHAER S. Mapping and predicting the earth's ionosphere using the global positioning system[D]. University of Berne, 1999.
[3]	WANG C, CHUANG S, LEI F, et al. Improved modeling of global ionospheric total electron content using prior information[J]. Remote sensing, 2018, 10(1): 63. DOI: 10.3390/rs10010063
[4]	ZHAO C B, YUAN Y B, ZHANG B C, et al. Ionosphere sensing with a low-cost, single-frequency, multi-gnss receiver[J]. IEEE transactions on geoscience and remote sensing, 2019, 57(2): 881-892. DOI: 10.1109/TGRS.2018.2862623
[5]	ZUS F, DENG Z, WICKERT J. The impact of higher-order ionospheric effects on estimated tropospheric parameters in precise point positioning[J]. Radio science, 2017, 52(8): 963-971. DOI: 10.1002/2017RS006254
[6]	SHI C, GU S F, LOU Y D, et al. An improved approach to model ionospheric delays for single-frequency precise point positioning[J]. Advances in space research, 2012, 49(12): 1698-1708. DOI: 10.1016/j.asr.2012.03.016
[7]	ZHU Y X, TAN S S, ZHANG Q H, et al. Accuracy evaluation of the latest BDGIM for BDS-3 satellites[J]. Advances in space research, 2019, 64(6): 1217-1224. DOI: 10.1016/j.asr.2019.06.021
[8]	WANG N B, LI Z S, YUAN Y B, et al. Beidou global ionospheric delay correction model (BDGIM): performance analysis during different levels of solar conditions[J]. GPS solutions, 2021, 25(3): 1-13. DOI: 10.1007/s10291-021-01125-y
[9]	YUAN Y B, WANG N B, LI Z S, et al. The beidou global broadcast ionospheric delay correction model (BDGIM) and its preliminary performance evaluation results[J]. Journal of the institute of navigation, 2019, 66(1): 55-69. DOI: 10.1002/navi.292
[10]	SWAMY K. Impact of high geomagnetic activity on Global Positioning System Satellite Signal (L-Band) delay and klobuchar algorithm performance over low latitudinal region[M]. Microelectronics, Electromagnetics and Telecommunications, 2018.
[11]	SHUKLA A K, DAS S, SHUKLA A P, et al. Approach for near-real-time prediction of ionospheric delay using Klobuchar-like coefficients for Indian region[J]. IET radar, sonar & navigation, 2013, 7(1): 67-74. DOI: 10.1049/iet-rsn.2011.0371
[12]	何玉晶. GPS电离层延迟改正及其扰动监测的分析研究[D]. 郑州: 解放军信息工程大学, 2006.
[13]	李维鹏, 李建文, 戴伟. Klobuchar电离层延迟改正模型精化方法的研究[J]. 测绘科学, 2009, 34(5): 49-51.
[14]	高杨, 焦诚, 刘萧, 等. 利用中国区域电离层数据拟合Klobuchar参数[J]. 全球定位系统, 2014, 39(5): 37-40,45.
[15]	朱进. 天文和测地VLBI物理模型的研究[D]. 南京: 南京大学, 1991.
[16]	赵威, 张成义. Klobuchar 模型的实用分析与改进[J]. 空间科学学报, 2013, 33(6): 624-628.
[17]	WANG N B, YUAN Y B, LI Z S, et al. Improvement of Klobuchar model for GNSS single-frequency ionospheric delay corrections[J]. Advances in space research, 2016, 57(7): 1555-1569. DOI: 10.1016/j.asr.2016.01.010
[18]	章红平, 平劲松, 朱文耀, 等. 电离层延迟改正模型综述[J]. 天文学进展, 2006, 24(1): 16-26.
[19]	李猛, 廖瑛, 梁加红, 等. 电离层延迟模型改进研究[J]. 计算机仿真, 2009(10): 4.
[20]	WANG N B, LI Z S, HUO X L, et al. Refinement of global ionospheric coefficients for GNSS applications: methodology and results[J]. Advances in space research, 2019, 63(1): 343-358. DOI: 10.1016/j.asr.2018.09.021
[21]	ADEBIYI S J, ADIMULA I A, OLADIPO O A, et al. Assessment of IRI and IRI-Plas models over the African equatorial and low-latitude region[J]. Journal of geophysical research : space physics, 2016. DOI: 10.1002/2016JA022697
[22]	OGWALA A, EMMANUEL S O, PANDA S K, et al. Total electron content at equatorial and low-, middle- and high-latitudes in African longitude sector and its comparison with IRI-2016 and IRI-Plas 2017 models[J]. Advances in space research, 2020. DOI: 10.1016/j.asr.2020.07.013
[23]	SEZEN U, GULYAEVA T L, ARIKAN F. Online computation of international reference ionosphere extended to Plasmasphere(IRI-Plas) model for space weather[J]. Geodesy and geodynamics, 2018, 9(5): 347-357. DOI: 10.1016/j.geog.2018.06.004
[24]	SEKIDO M, KONDO T, KAWAI E, et al. Evaluation of GPS-based ionospheric TEC estimation and application to pulsar VLBI observation[J]. Communications research laboratory review, 2003, 38(4). DOI: 10.1029/2000RS002620

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Refinement of BKlob model based on multi-source data

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