Automatic Generation of Real-Time Ada Simulations for Space Station Freedom

Abstract

This paper describes a method to automatically generate real-time simulations in Ada for use in the Space Station Freedom (SSF) Integration, Test, and Verification Environment (ITVE). The interface requirements of the ITVE could not be fully met by commercial-off-the-shelf (COTS) tools; therefore, modificatians to the COTS tool were necessary and a tool was developed in-house to meet the required interface. This process is illustrated by generating a Space Station Guidance, Navigation, and Control (GN&C) simulation from an engineering block diagram. Moreover, this method can be readily applied to other environments with different types of schedulers or real-time databases.