Study on Inter-System Biases Estimation for Combined GPS-BeiDou RTK-GNSS

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  • RTK-GNSSにおけるGPSとBeiDouのシステム間バイアス推定に関する研究

Description

Adding BeiDou satellites for positioning of the GPS satellites will be beneficial for the GNSS positioning. However, there are intersystem biases (ISBs) based on different systems and signals to implement RTK-GNSS. To resolve this problem, ambiguities for RTK-GNSS are normally resolved in each system respectively. In this case, the number of used satellites are unfortunately decreased according to the number of system. To overcome this disadvantage, ISBs of the combined RTK-GNSS are investigated and we could demonstrate that our proposed practical method to estimate ISBs was effective for static as well as kinematic RTK-GNSS.

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