Open AccessClassroom study of GNSS position accuracy using smartphones
Author(s) -
K. Izet Ünsalan
Publication year - 2020
Publication title -
scientific bulletin
Language(s) - English
Resource type - Journals
eISSN - 2392-8956
pISSN - 1454-864X
DOI - 10.21279/1454-864x-20-i1-011
Subject(s) - gnss applications , global positioning system , computer science , position (finance) , course (navigation) , multipath propagation , satellite , georeference , multimedia , geography , engineering , telecommunications , aerospace engineering , channel (broadcasting) , finance , physical geography , economics
The data used in this paper were collected by the participants of the first MOOC (Massive Open Online Course) “GPS: An Introduction to Satellite Navigation, with an interactive Worldwide Laboratory using Smartphones”, offered by Stanford University through Coursera, taught by professors Per Enge and Frank van Diggelen. More than 1000 users worldwide determined their position in open and urban areas and submitted their results, which were compared with the claimed accuracy. Additionally, the authors of the MOOC have proposed the “Law of Urban Multipath” that predicts GNSS position accuracy based on heights of buildings in the proximity. In this study, the aforementioned data was analyzed to obtain practical results that can be used to improve the accuracy of simple smartphone and tablet based GNSS measurements. In the undergraduate course taught by the first author, this methodology was used as a laboratory tool for the improvement of navigation and positioning skills of the students.