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http://dx.doi.org/10.12673/jkoni.2012.16.6.944

Analysis of Sky-View-Factor based Dilution of Precision for Evaluation of GNSS Performance in Land Road Environment  

Hong, Woon-Ki (Korea Aerospace Research Institute)
Choi, Kwang-Sik (Korea Aerospace Research Institute)
Lee, Eun-Sung (Korea Aerospace Research Institute)
Im, Sung-Hyuck (Korea Aerospace Research Institute)
Heo, Moon-Beom (Korea Aerospace Research Institute)
Abstract
The conventional indexes for describing the GNSS positioning performance such as satellite visibility, dilution of precision (DOP) and signal to noise ratio is very useful in open sky, however, they are not useful in the land road environment. In this paper new index is suggested for describing the GNSS positioning performance for the road environment. The new index is called Sky View based DOP (SVDOP). SVDOP is derived referring the Sky-View-Factor (SVF). The usefulness is analyzed by comparing the SVDOP and SVF in land road environment after the singularity points are selected and SVDOP is calculated.
Keywords
GPS; GNSS; Sky-View-Factor; Performance; Land Road Environment;
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