A hardware-in-the-loop simulation (HILS) system is presented for mid and terminal guidance simulation of precise imaging auto target recognizing (ATR) missiles. The system provided a simulation platform supporting the researches of ATR theories and designations of remote precise missiles. This distributed HILS system uses a multi-solution communication architecture between nodes of different real-time and expandability demands. The main simulation nodes includes the missile model node, the ATR processing node, the scene generate node and 2DOF rotary platform system, and the other auxiliary nodes can be added into the system a smart way. Most of the main nodes were developed in Windows and are open and expandable. RTX SDK was used to solve the Windows real-time problem. Lastly, a simulation instance is proposed to show the overall features of the system.
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