Abstract
High quality GNSS (Global Navigation Satellite System) positioning can be useful for numerous engineering tasks, for example, in transport applications concerned to monitoring and optimization of road traffic. In this case lane-level positioning is a relevant task and its solution should satisfy a wide range of users, and thus should be low-cost and easy to use. In this paper the solution of accurate GNSS positioning of the car with the use of differential correction of navigation data in order to provide positioning by the lane level in urban areas of Kazakhstan is investigated. A smartphone is considered as low-cost navigation aid. Navigation data obtained using a smartphone were differentially corrected using the developed software of the Control System for Reference GNSS Station Network relative to one reference station. It is shown that using a smartphone as a navigation aid with further differential correction of data relative to one reference station allows positioning vehicles in motion with an error of 1.4 meters. The result is valuable as a basis for developing intelligent transportation systems.
Highlights
Developed and implemented in the second half of the last century, GNSS (Global Navigation Satellite System) GPS (Global Positioning System) and GLONASS (GLObal NAvigation Satellite System), as well as the later Beidou and Galileo systems, nowadays solve a wide range of tasks of navigation and coordinatetime support
Differential positioning, which consists in processing of GNSS signals using reference stations with known coordinates, is characterized by higher accuracy [1]
High-accuracy positioning technologies developed by GNSS have opened up new possibilities, being amply applied in such applications as surveying, e.g. creation of geodesic networks, leveling works and study of geodynamic processes [5, 6], mapping, e.g. land management and cadastres [7], precision agriculture, e.g., soil sampling, yield monitoring and chemical and fertilizer application [8, 9], environment monitoring [10, 11]
Summary
Developed and implemented in the second half of the last century, GNSS (Global Navigation Satellite System) GPS (Global Positioning System) and GLONASS (GLObal NAvigation Satellite System), as well as the later Beidou and Galileo systems, nowadays solve a wide range of tasks of navigation and coordinatetime support. In this paper the task of studying the possibility of using a smartphone with a standard single frequency navigation receiver to determine the location of the vehicle on the lane level with an accuracy of 1-3 meters.
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