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Calibration and analysis of BDS receiver-dependent code biases
Zhang, Yize1,2; Kubo, Nobuaki2; Chen, Junping1,3; Wang, Ahao1,4
2021-03-25
Source PublicationJOURNAL OF GEODESY
ISSN0949-7714
Volume95Issue:4Pages:14
AbstractDifferent designs of receiver correlators and front ends will cause different biases in terms of the pseudorange. In this paper, we present an algorithm to derive GNSS receiver-dependent code biases by estimating an additional code bias for each satellite based on different orbit and clock products and apply the calibrated biases in user positioning. One-month data from 117 globally distributed multi-GNSS experiment stations are selected to analyze the characteristics of BeiDou Navigation Satellite System (BDS) code biases, including BDS-2 and BDS-3 satellites. It is shown that the BDS code biases on B1I and B3I signals differ by receiver type, receiver model, antenna type, or even unknown factors. The code biases on BDS-2 satellites can reach up to 4 ns from peak to peak, while they are within 2 ns for BDS-3 satellites. The receiver-dependent code biases are calibrated based on the broadcast ephemeris and the precise products. With a correlation coefficient of approximately 0.9, it is demonstrated that the calibrated code biases are in agreement not only among different products, but also with previous result of BDS-2. To validate the effect of the calibrated code biases, we apply them in single point positioning (SPP), precise point positioning (PPP), and real-time kinematic (RTK) positioning. It is proven that with corrected BDS code biases, SPP users will benefit from an overall improvement of 9.5%, 9.9%, and 27.4% at B1I, B3I, and B1I/B3I ionosphere-free frequencies. For the ionosphere-free based positioning using BDS-3 only, the impact of code biases cannot be ignored. The corrected code biases will accelerate the convergence performance in PPP. For RTK applications, especially for single-frequency users, the fixing rate and ratio values will also improve when the code biases are corrected.
KeywordBeiDou navigation satellite system Timing group delay Code bias Single point positioning Precise point positioning Real-time kinematic
Funding OrganizationKey R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China
DOI10.1007/s00190-021-01497-6
Language英语
Funding ProjectKey R&D Program of Guangdong Province[2018B030325001] ; National Natural Science Foundation of China[11673050] ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone[ZJ2018-ZD-009] ; National Key R&D Program of China[2018YFB0504300]
Funding OrganizationKey R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong Province ; Key R&D Program of Guangdong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development Funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China
WOS Research AreaGeochemistry & Geophysics ; Remote Sensing
WOS SubjectGeochemistry & Geophysics ; Remote Sensing
WOS IDWOS:000634834200003
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78496
Collection中国科学院国家天文台
Corresponding AuthorChen, Junping
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Tokyo Univ Marine Sci & Technol, Tokyo 1358533, Japan
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Tongji Univ, Coll Surveying & Geoinformat, Shanghai 200092, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yize,Kubo, Nobuaki,Chen, Junping,et al. Calibration and analysis of BDS receiver-dependent code biases[J]. JOURNAL OF GEODESY,2021,95(4):14.
APA Zhang, Yize,Kubo, Nobuaki,Chen, Junping,&Wang, Ahao.(2021).Calibration and analysis of BDS receiver-dependent code biases.JOURNAL OF GEODESY,95(4),14.
MLA Zhang, Yize,et al."Calibration and analysis of BDS receiver-dependent code biases".JOURNAL OF GEODESY 95.4(2021):14.
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