عنوان مقاله [English]
نویسنده [English]چکیده [English]
Russia's satellite navigation system, known as Glonass, will be completed in late 1995. This system consists of 24 satellites, which move in three elliptical orbits, at a distance of 19,100 kilometers from the Earth’s surface. These satellites introduce the Glonass system, which is subject to comparisons with its American counterpart. The question here is that what advantages there are in using either of these systems with a receiver. Currently, both of the navigation systems that are in operation are being investigated. The American system called GPS and Glonass each include 24 satellites. Although there are many similarities between the two systems, their characteristics are completely different, so that they are not effective in running the system.