Precise Positioning in Real-Time for Visually Impaired People using Navigation Satellites
نویسنده
چکیده
This paper focuses on to identify the limits and insufficiencies in utilising Network Real-Time Kinematic Global Navigation Satellite Systems (NRTK GNSS) and its augmentation techniques in a precise positioning in a realtime navigation system related to visually impaired people. The purpose was to improve the positioning performance and ensure the availability of reliable and highly accurate position solutions.Nevertheless, NRTK GNSS positioning is particularly constrained by wireless data link coverage, delays of correction and transmission and completeness, GPS and GLONASS signal availability, etc., which could downgrade the positioning quality of the NRTK results. The positioning model operates through client-server based architecture consisted of a Navigation Service Centre (NSC) and a Mobile Navigation Unit (MNU). Index Terms — Network Real Time Kinematic, GNSS, Navigation, Visually Impaired People.
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تاریخ انتشار 2012