Advanced SearchSearch Tips
Preliminary Analysis of Network-RTK for Navigation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Preliminary Analysis of Network-RTK for Navigation
Min-Ho, Kim; Tae-Suk, Bae;
  PDF(new window)
It is well-known that even the DGNSS (Differential Global Navigation Satellite System) technique in navigation for ground vehicles can only provide several meters of accuracy, such that it is suitable for simple guidance. On the other hand, centimeter to millimeter level accuracy can be obtained by using carrier phase observables in the field of precision geodesy/surveying. In this study, a preliminary study was conducted to apply NRTK (Network-RTK) by NGII (National Geographic Information Institute) to ground vehicle navigation. Onboard GNSS receivers were used for NRTK throughout the country, and the applicability of NRTK on navigation was analyzed based on NRTK surveying results. The analysis shows that the overall ambiguity fixing rate of NRTK is high and is therefore possible to apply it for navigation. In urban areas, however, the fixing rate decreases sharply, therefore, it needs to employ a method to minimize the effect of the float solutions, which can reach up to 10 meters. It is still feasible to obtain a centimeter level of accuracy in some area using NRTK under certain conditions. But, the ambiguity fixing rate of FKP falls down to 55% for high speed vehicles, and so the surveying accuracy should be determined by considering various factors of surveying environments. In addition, it is difficult to fix ambiguities using single-frequency GPS receivers. Finally, several suspicious NRTK(FKP) connection problems occurred during atmospheric disturbances (phase two or up), which should be investigated further in upcoming research.
 Cited by
다중 위성항법시스템 이용조건에 따른 위성측위 성능 분석,박준규;엄대용;

한국산학기술학회논문지, 2016. vol.17. 4, pp.567-572 crossref(new window)
Design of the Realtime GNSS Surveying Software for Advancement of Geospatial Information Construction Technology,;;

한국측량학회지, 2016. vol.34. 4, pp.425-430 crossref(new window)
Gao, J., Petovello, M.G., and Cannon, M.E. (2006), Development of precise GPS/INS/wheel speed sensor/yaw rate sensor integrated vehicular positioning system, Proceedings of the National Technical Meeting of the Institute of Navigation (ION NTM 2006), Vol. 2, pp. 780-792.

Georgy, J., Karamat, T., Iqbal, U., and Noureldin, A. (2011), Enhanced MEMS-IMU/odometer/GPS integration using mixture particle filter, GPS Solutions, Vol. 15, No. 3, pp. 239-252. crossref(new window)

Groves, P.D. (2013), The PNT boom: future trends in integrated navigation, Inside GNSS, Vol. March/April 2013, pp. 44-49.

Kong, S. (2014), R&D trends of navigation technology for vehicles, OSIA Standards & Technology Review Journal, Vol. 27, No. 3, pp. 16-22. (in Korean)

Kim, M. and Bae, T. (2013), Stability assessment of FKP system by NGII using long-term analysis of NTRIP correction signal, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 31, No. 4, pp. 321-329. (in Korean with English abstract) crossref(new window)

Li, T. (2009), Use of Wheel Speed Sensors to Enhance a Reduced IMU Ultra-Tight GNSS Receiver, Master’s thesis, University of Calgary, Calgary, Canada, 169p.

NGII (2013), A Study for FKP-GPS Service, No. 11-1613436-000016-01, National Geographic Information Institute, Suwon, p. 11.

No, S., Han, J., and Kwon, J. (2012), Accuracy analysis of network-RTK(VRS) for real time kinematic positioning, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 30, No. 4, pp. 389-396. (in Korean with English abstract) crossref(new window)

Park, B. (2008), A Study on Reducing Temporal and Spatial Decorrelation Effect in GNSS Augmentation System, Ph.D. dissertation, Seoul National University, Seoul, Korea. (in Korean with English abstract)

Takac, F. and Zelzer, O. (2008), The relationship between network RTK solutions MAC, VRSTM, PRS, FKP and i-MAX, Proceedings of the 21st International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2008), 16-19 September, Savannah, GA, pp. 348-355.

Wübbena, G., Bagge, A., and Schmitz, M. (2001), Network-based techniques for RTK applications, Proceedings of the Japan Institute of Navigation, GPS Symposium, 14-16 November, Tokyo, Japan, pp. 53-65.