Hardware-in-the-loop Simulation for Spacecraft Attitude Control Based on Ad hoc Network

To increase the effective load ratio of spacecraft,and to solve the wire connected problem of current attitude control system,a hardware-in-the-loop simulation system for rigid-body spacecraft attitude control based on the mono-axis air-bearing table and ad hoc wireless network was established,and the flexibility and reliability of the spacecraft design were greatly enhanced.Firstly,the constitution and scheme design were introduced in detail;the dual ARM redundant architecture was employed for the on-board computer,and the fiber gyro,on-board computer,reaction wheel and the dynamics simulation computer were connected via the ad hoc wireless network.Secondly,the attitude kinematic equation and dynamic equation were introduced and the control algorithms were proposed.Finally,the three-axis stable control for spacecraft was conducted in the simulation system.The simulation results show that the control precision is satisfied to meet the mission requirements and the correctness of the software and hardware interfaces are also verified.