A multi-level hardware-in-the-loop simulation

This paper discusses the design and the use of multi-level Hardware-In-the-Loop (HIL) simulations as a powerful tool for the modernization of a complex system. This approach will be illustrated by describing a HIL simulator that was developed as the key component for a non-destructive and cost-effective prototype development process for a modernization of a semi-automatic guided missile system. The modular multiprocessor simulation core, multi-level simulation approach, asynchronous data exchange model and other key issues of the implementation are presented. Some possible aspects for the system modernization are highlighted. The paper concludes with a discussion of the simulation outputs and the benefits of this approach.