Abstract: GNC system of rendezvous and docking in space involves two attitude and orbit control systems of both the Chaser satellite and Target satellite. The simulation of this system is more complicated. A standard method about several simulation models, such as orbit dynamics, attitude dynamics, relative dynamics, sensor models etc. is proposed in this paper. Based on these standard models and an automatic coding method, a GNC simulation system for rendezvous and docking in space is built. This system achieves  high degree of modularization and automatization, and has high expansibility and generality. This system achieves a standard simulation of the two satellites, and helps researchers improve efficiency and provides support for design and simulation of RVD control system greatly.

Key words: rendezvous and docking in space, GNC system, simulation system, automatic coding