Computer simulation and the performance capabilities of the Navstar space-based navigation system

摘要

Six Navstar navigation satellites are presently traveling through space 10,898 nautical miles above the earth. By 1987, the operational constellation, which will consist of at least 18 larger and more advanced satellites, will be providing continuous navigation coverage to a worldwide class of civilian and military users. The Navstar satellite constellation will yield routine accuracies nearly 20 times better than any other global navigation system. This paper explores some of the computer modeling methods used by the Navstar system itself and by researchers who have been simulating the military and civilian benefits to be derived from its use.