Homogeneous observation conditions and settings were respected for GPS signal acquisition. Intensive field measurements (i.e., 1data/1min x 3days) were carried out in Tetuan city (Morocco) during days of 29-30- using local storage database feature. In order to describe the accuracy of GPS receivers a statistical method using a mobile software acquisition tool developed within our research group has been used. Generally, for each GPS enabled receiver the user need to evaluate the radius of the confidence region which describes the accuracy of the GPS device. Location-based services quality is highly depending on the accuracy of the position of the user. This is frequently used today for data collection and integration within Geographic Information Systems (GISs). The present paper exposes the results of a study and the analysis of accuracy, coverage and continuity of Global Positioning System (GPS) signal, using the Trimble Juno SB receiver. Nowadays, information and mobile information technologies are being considered by the scientific community as primordial support for many other emerging technologies.
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