Abstract
Satellite navigation and positioning have become an indispensable component of smart devices and applications. In order to avoid signal interference in L1 frequency and provide novel services, Global Positioning System III (GPS III) updated a modern signal named L1C and tested in three Quasi-Zenith Satellite System (QZSS) satellites launched in 2017. In December 2018, the first GPS III satellite was launched, which implies the joint positioning using QZSS and GPS L1C signal is improved. L1C signal offers a series of advanced designs in signal modulation, message structure and coding, etc. In this regard, this paper presents complete methodologies for L1C signal joint receiving processing. For the on-air signals, this paper presents a methodology and results from collecting and assessing binary offset carrier (BOC) modulation and time-multiplexed BOC (TMBOC) modulation used in L1C signal. Using the same omnidirectional antenna and the test-equipment, the L1C signal was collected in Xi’an and Sanya, China, respectively. Experiments in Xi’an verified the joint positioning method to complement the GPS III and QZSS satellite constellations. The methodology in this paper evaluates the positioning error of BOC(1,1) and TMBOC(6,1,4/33) under the same environment and satellite constellation in Sanya. It is also verified that the joint positioning error is less than the QZSS-only positioning due to the optimization of the satellite constellation.
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References
Flynn CD, McCaffrey AM, Jayachandran PT, Langley RB (2019) Discovery of new code interference phenomenon in GPS observables. GPS Solutions 23:65
Voosen P (2017) GPS satellites yield space weather data. Science 355:443
Nadarajah N, Khodabandeh A, Teunissen PJG (2016) Assessing the IRNSS L5-signal in combination with GPS, Galileo, and QZSS L5/E5a-signals for positioning and navigation. GPS Solutions 20:289–297
JAXA (2018) Interface specification for QZSS. Japan Aerospace Exploration Agency
NAVSTAR Global Positioning System Space Segment/User Segment L1C Interfaces (2018) IS-GPS-800E
Lee, C, Chen, Y-H, Wong, G, Lo S, Enge, P (2013) Multipath benefits of BOC versus BPSK modulated signals using on-air measurements. In: Proceedings of the 2013 international technical meeting of The Institute of Navigation, pp 742–751
Rushanan JJ (2007) The spreading and overlay codes for the L1C signal. Navigation 54:43–51
Fine P, Wilson W (1999) Tracking algorithm for GPS offset carrier signals. In: Proceedings of the 1999 national technical meeting of The Institute of Navigation, pp 671–676
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Huo, X., Wang, X., Wang, S., Chen, X., Ke, J. (2020). Verification of GPS III and QZSS L1C Signal Joint Positioning Performance with Software-Defined Receiver. In: Jing, Z. (eds) Proceedings of the International Conference on Aerospace System Science and Engineering 2019. ICASSE 2019. Lecture Notes in Electrical Engineering, vol 622. Springer, Singapore. https://doi.org/10.1007/978-981-15-1773-0_24
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DOI: https://doi.org/10.1007/978-981-15-1773-0_24
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