NDLI: Precise Point Positioning Using Combined GPS/GLONASS Measurements

Content Provider	Semantic Scholar
Author	Azab, Mohamed El-Rabbany, Ahmed Shoukry, Mohamed
Copyright Year	2011
Abstract	SUMMARY Precise Point Positioning (PPP) with GPS has attracted the attention of many researchers over the past decade. Recently, the Russian GLONASS system has been modernized and restored to near full constellation status, which made it attractive to positioning and navigation users. Having two healthy systems, namely GPS and GLONASS at present, allows for the integration of both constellations. This in turn promises to improve the availability, positioning accuracy, and reliability of the PPP solution. This study investigates the effect of combining GPS and GLONASS dual-frequency measurements on the static PPP solution and its sensitivity to different processing strategies. Many data sets from IGS tracking stations distributed across North America were processed using the Bernese GPS 5.0 software package. It is shown that the addition of GLONASS constellation improves the number of visible satellites and geometry (PDOP) by more than 60% and 30%, respectively. Statistical analysis of PPP results shows that the performance of the combined GPS/GLONASS solution is superior to that of GPS-only solution. However, the improvement in the final daily (i.e., with 24 hours of observations) solution is not significant.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://fig.net/resources/proceedings/fig_proceedings/fig2011/papers/ts04j/ts04j_azab_elrabbany_et_al_5277.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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