Duangduen Asavasuthirakul
ABSTRACT
As users increasingly rely on navigation assistance, they expect accurate and reliable navigation performances, especially in obstructed areas where positioning quality of global navigation satellite system (GNSS) is often deteriorated. This paper presents a novel methodology, called integrated GNSS (iGNSS) quality of service (QoS) prediction to provide a means for navigation applications to plan according to GNSS positioning quality. The methodology could be used to predict iGNSS QoS on prospective route segments ahead of time, among other tasks, allowing the navigation service to prepare a suitable plan before the users reaches the poor iGNSS QoS segments. The results were evaluated by comparing the predicted iGNSS QoS to the collected GPS data on sample routes in different environment surroundings under various parameter settings. The results show that the proposed methodology is capable of predicting GNSS QoS on segments under open sky condition accurately and identifying locations on segments with poor GNSS QoS.
- Karimi, H. Roongpiboonsopit, D., and Kasemsuppakorn, P. 2011. Uncertainty in personal navigation services, J. Nav. 64, 2 (Mar. 2011), 341--356.Google Scholar
- Seynat, C., Kealy, A. and Zhang, K. 2004. A performance analysis of future Global Navigation Satellite Systems. J. GPS. 3, 232--241.Google ScholarCross Ref
- Karimi, H., Liu, X., Liu, S. and Hammad, A. 2004. GPSLoc: framework for predicting Global Positioning System quality of service. J. Comput. Civil Eng.18, 196--206.Google ScholarCross Ref
- Germroth, M. and Carstensen, L. 2005. GIS and satellite visibility: viewsheds from space. In Proceeding of the ESRI International User Conference 2005 (San Diego, California, July 25--29, 2005).Google Scholar
- Lee, Y., Suh, Y. and Shibasaki, R. 2008. A simulation system for GNSS multipath mitigation using spatial statistical methods. Comput. Geosci. 34, 1597--1609. Google ScholarDigital Library
- Marais, J., Berbineau, M. and Heddebaut, M. 2005. Land mobile GNSS availability and multipath evaluation tool. IEEE Trans. Veh. Technol. 54, 1697--1704.Google ScholarCross Ref
- Verhagen, S. 2002. Studying the performance of Global Navigation Satellite Systems: a new software tool. GPS World. 01 2012.Google Scholar
- Taylor, G., Li, J., Kidner, D., Brunsdon, C. and Ware, M. 2007. Modelling and prediction of GPS availability with digital photogrammetry and LiDAR. Int. J. GIS. 21, 1--20. Google ScholarDigital Library
- Lee, Y., Suh, Y. and Shibasaki, R. 2008. A GIS-based simulation to predict GPS availability along the Tehran Road in Seoul, Korea. KSCE J. Civ. Eng. 12, Nov, 401--408.Google ScholarCross Ref
- Karimi, H., Zimmerman, B., Roongpiboonsopit, D., and Rezgui, A. 2011. Grid based geoprocessing for integrated global navigation satellite system simulation. J. Comput. Civil Eng. 26, 1, 19--27.Google ScholarCross Ref
- Karimi, H., Roongpiboonsopit, D. and Wang, H. 2011. Exploring real-time geoprocessing in cloud computing: navigation services case study. Trans. in GIS. 15, 5, 613--633.Google ScholarCross Ref
- Roongpiboonsopit, D. and Karimi, H.. 2012. Integrated Global Navigation Satellite System (iGNSS) QoS prediction. Photogramm. Eng. & Remote Sens. 78, 2, 139--149.Google ScholarCross Ref
- Kasemsuppakorn, P. and Karimi, H. 2009. Personalised routing for wheelchair navigation. J. Loc. Based Serv. 3, 1. 24--5 Google ScholarDigital Library
Index Terms
- Integrated GNSS QoS Prediction for Navigation Services
Recommendations
Orbit determination algorithm and performance analysis of high‐orbit spacecraft based on GNSS
The study of using the Global Navigation Satellite System (GNSS) to locate Geostationary Earth Orbit (GEO) satellites is very valuable. In this thesis, a new RF strategy is proposed. The back‐lobe signal and the main‐lobe signal of GNSS satellites are ...
Prediction versus real-time orbit determination for GNSS satellites
To serve real-time users, the IGS (International GNSS Service) provides GPS and GLONASS Ultra-rapid (IGU) orbits with an update of every 6 h. Following similar procedures, we produce Galileo and BeiDou predicted orbits. Comparison with precise orbits ...
Investigating the inconsistency of ionospheric ROTI indices derived from GPS modernized L2C and legacy L2 P(Y) signals at low-latitude regions
The rate of change of total electron content (TEC) index (ROTI), an important parameter to characterize ionospheric irregularities and associated scintillation activities, can be calculated from both new Global Positioning System (GPS) civilian L2C and ...
Comments