Abstract
Abstract Producers of GPS receivers nowadays offer many easy-to-use, mobile units for amateur and professional athletes. Similar functionality parameters and a relatively low price make it difficult for the average user to make a choice. This article compares technical aspects of different GPS devices and presents results of their dynamic accuracy evaluation. Selected GNSS units were divided into two groups: specialized dedicated to sports and GPS data loggers. The tests were carried out on the sports stadium of the Gdansk University of Physical Education and Sport, where the lanes were measured with the use of the GPS Total Station phase receivers Leica GS-15 VIVA, supported by Polish Active Geodetic Network ASG-EUPOS. The ellipsoidal coordinates logged in the GNSS sports receivers were transformed in Gauss-Kruger projection to conformal x, y coordinates and statistical distributions of the predictable accuracy were calculated. The article also discusses other (important from a functional point of view) characteristics of GPS receivers used by athletes.
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