Abstract
Traditional group delay measurement methods include single carrier phase method and spectrum analysis method based on signal autocorrelation function, but these two methods have their own limitations in GNSS receiver group delay measurement. The single carrier phase method cannot measure the group delay of multi filters and downconverters stage connect channel directly, and the measurement accuracy of group delay of spectrum analysis method based on signal autocorrelation function will deteriorate greatly near the zero point of signal power spectrum. In order to solve the above problems, this paper proposes a BOC (bi-nary offset carrier) signal group delay measurement method, which can realize the simple and accurate measurement of GNSS receiver group delay. In this paper, a group delay measurement method is analyzed and simulated by software, and verifies the feasibility and accuracy of the method are verified by simulation.
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Acknowledgements
This research was funded by Shanghai Nature Science Fund under contract No. 19ZR1426800, Shanghai Jiao Tong University Global Strategic Partnership Fund (2019 SJTU-UoT), WF610561702, and Shanghai Jiao Tong University Young Teachers Initiation Program, AF4130045.
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Li, L., Wang, X., Wu, S., Bian, L. (2023). A Group Delay Measurement Method for GNSS Receiver Based on BOC Signal. In: Jing, Z., Strelets, D. (eds) Proceedings of the International Conference on Aerospace System Science and Engineering 2021. ICASSE 2021. Lecture Notes in Electrical Engineering, vol 849. Springer, Singapore. https://doi.org/10.1007/978-981-16-8154-7_7
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DOI: https://doi.org/10.1007/978-981-16-8154-7_7
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