Abstract
The hardware-in-the-loop simulation plays an important role in aerocraft design. In hardware-in-the-loop simulation on launch vehicle, some hardware components are connected to the simulation loop and then work driven by data from the running computer which yield different operand quantities in different coordinate frames. According to the analysis on characteristic of the ballistics in the inertial launch reference frame, a hardware-in-the-loop simulation system for a small launch vehicle containing IMU, rocket-borne computer and rudder is established. Simulation results indicate the control scheme is accurate, the algorithm of navigation, guidance and attitude control are valid, and the calculation reduction quantity benefited from using the data in the inertial launch reference frame rather than in launch reference is worked out.
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