The evolution of technology is spurring NASA to modernize its space communications network to meet customer demand for higher data rates and common interfaces. Measuring performance through real-world testing is difficult and expensive, however. Also difficult is using static analysis to predict network application performance. To reduce the human and financial resources necessary to meet these goals, NASA Glenn Research Center turned to network simulation. NASA Glenn integrated multiple commercial off-the-shelf (COTS) software tools, including STK's
Analyzer,
Astrogator,
Communications,
Coverage and
Scheduler modules, to create the Integrated SCaN (Space Communications and Navigation) Simulator.
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