Comment on Choi et al. Correlation between Ionospheric TEC and the DCB Stability of GNSS Receivers from 2014 to 2016. Remote Sens. 2019, 11, 2657

Choi et al. (2019) analyzed the correlation between the ionospheric total electron content (TEC) and the Global Navigation Satellite System (GNSS) receiver differential code bias (DCB) and concluded that the long-term variations of the receiver DCB are caused by the corresponding variations in the i...

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Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2020-11, Vol.12 (21), p.3496
Main Authors: Zhong, Jiahao, Lei, Jiuhou, Yue, Xinan
Format: Article
Language:English
Subjects:
DCB stability
Global navigation satellite system
Global positioning systems
GPS
GPS DCB
Ionosphere
ionospheric variability
receiver DCB
Satellite navigation systems
satellite replacement
Satellites
Solar cycle
Sun
Total Electron Content
Variation
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Summary:Choi et al. (2019) analyzed the correlation between the ionospheric total electron content (TEC) and the Global Navigation Satellite System (GNSS) receiver differential code bias (DCB) and concluded that the long-term variations of the receiver DCB are caused by the corresponding variations in the ionosphere. Unfortunately, their method is problematic, resulting in conclusions that are not useful. The long-term variations of the Global Positioning System (GPS) DCBs are primarily attributed to the GPS satellite replacement with different satellite block series under the zero-mean constraint condition, rather than the ionospheric variability.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs12213496