Configuration of Network Based GNSS Correction System for Land Transportation Navigation

Abstract

In this paper, a configuration procedure of a transportation infrastructure system for GNSS based very precise real-time positioning is proposed. This infrastructure system consists of several receiving station, a central station, and communication sub-systems. The required performance, design, implementation and verification of each sub-system are explained respectively. The required performance can be broken down into accuracy, integrity, stability, processing time. The design of the each sub-system is performed in accordance with the required performance and each sub-system is built with regard to the design. Lastly the implemented system is verified in comparison with the required performance.

Performance Analysis of GPS/BDS Integrated Precise Positioning System Considering Visibility of Satellites

“…In recent years, Intelligent Transportation Systems (ITS) to provide convenient services to the users of the traffic system has actively studied around the world. In order to provide advanced service, land transportation requires a position accuracy of less than 50 cm (2DRMS) with which it can be possible to distinguish lanes [1]. Research on precise positioning by using the satellite navigation system is being actively carried out to provide accurate position information for land transportation.…”

“…The double differenced the code measurement and the carrier phase measurement for each system can be expressed as in Eqs. (1)(2)(3)(4). The double differenced code measurement of GPS is…”

Threshold Determination of The GPS Carrier Acceleration, Ramp, and Step on the Normal Condition

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A Global Navigation Satellite System (GNSS) was developed for military purposes, but it is currently also used in various civilian fields (e.g., land transportation, shipping, and aviation) (Son et al 2013). GNSS can determine the position of a receiver using the measurements of signals received from at least four satellites.

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“…Accordingly, GNSS is used for positioning in relation to traffic, geodetic survey, and surveying, and also widely used for time synchronization, weather monitoring, etc. (Lee et al 2013). The economic and social importance of GNSS is well known.…”

“…The performance requirements for positioning using GNSS are divided into accuracy, integrity, continuity, and availability (Lee et al 2013). To secure the reliability of these requirements, it is necessary to detect the failure of a satellite and to eliminate the detected measurement.…”