Fig. 1. The near earth object survey and positioning system

Fig. 2. The active defense system composition

Fig. 3. The kinetic impact on asteroids

Fig. 4. Experimental system for momentum transfer characteristics of kinetic impact on asteroids

Fig. 5. Crater morphology of simulated asteroid samples^［53-54］

Fig. 6. The relationship between pit depth，pit diameter，and impact velocity

Fig. 7. The relationship between the mass of the ejected object，β and the impact velocity

Fig. 8. Simplified calculation model for hypervelocity impact^［54］

Fig. 9. Simulation results of experiment No.1

Fig. 10. The influence of impactor shape on momentum transfer coefficient

Fig. 11. The influence of impactor density on momentum transfer coefficient

Fig. 12. The influence of asteroid strength and porosity on momentum transfer coefficient

Fig. 13. The impact zone zoning for kinetic impact on asteroids

Fig. 14. The influence of impact position on the change in velocity of asteroids

Fig. 15. The main stages of mission implementation