Positioning Technology with QZSS Signals

A. Veitsel, A. Lebedinsky, D. Nikitin

Abstract:	Presented the results of using signals from "MICHIBIKI" satellite of QZSS. This paper presents the results of the tracking and using of QZZS signals in Topcon navigation receivers. The paper show the experimental results of signal tracking in four frequency band - L1, L2, L5 and E6. Analyzed the multipath error for these signals and methods of multipath mitigation in time domain with digital signal processing technology. Analyzed the multipath error for signals in L1 frequency band with different technologies of multipath mitigation versus signals in L5 frequency band. Paper is show the results of multipath error calculations for different signals. Presented of the same results for multipath errors with signals in L5 frequency band and L1 frequency band when using the reference signals in the navigation receiver correlators.? Compared of BOC(1,1) signal characteristics and MBOC signal for precise positioning.?Analyzed the L1C signal and the results of information decoding with LDPC decoder. Presented the experimental data on the LEX signal tracking and symbol decoding in the E6 band. Compare of different technology for received of pilot component of signal and data component. Analyzed of techniques of LEX data component receiving with CSK modulation. Presented the results of the using the new generation of Topcon ASIC (Vanguard) for receive of data component with information of the LEX signal. Paper is showed the results of receiving and decoding the LEX signal in real conditions and with different energy.?Discussion the results of decoding RTCM message for JAXA-LEX (MADOCA) after experimental receiving with Vanguard ASIC. We analyze the characteristics the received of high rate clock corrections and compared with clock corrections from different IGS analytic centers. ?Presented the results of experimental studies on the convergence time and accuracy characteristics of precise point positioning (PPP). The possibility of using the high rate clock correction of QZSS for precise point positioning and using the different precise orbits of satellite. Analyzes the impact of rate correction clock to the time of convergence and accuracy of the positioning. Presented the experimental results of PPP with using the different rate of clock corrections. The results show the improved of PPP convergence time with high rate clock correction.
Published in:	Proceedings of the 2014 International Technical Meeting of The Institute of Navigation January 27 - 29, 2014 Catamaran Resort Hotel San Diego, California
Pages:	441 - 449
Cite this article:	Veitsel, A., Lebedinsky, A., Nikitin, D., "Positioning Technology with QZSS Signals," Proceedings of the 2014 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2014, pp. 441-449.
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