Abstract:Conventional deployment of stratospheric aerostats is limited by launch conditions and time constraints. In contrast, airborne-deployed systems offer advantages in efficiency and flexibility. This paper establishes the dynamic models for the deceleration parachute and aerostat balloon, proposes a territory-hovering control strategy for stratospheric aerostats, and develops a dynamic simulation platform for airborne-deployed unpowered stratospheric aerostats. The paper also conducts a trajectory simulation analysis of the system’s deployment and territory-hovering processes. The simulation results indicate that the airborne-deployed method enables rapid deployment of stratospheric aerostats within 335 seconds. Furthermore, when the territory-hovering control radius is set to 30 km from the deployment point, the maximum deviation of the aerostat from the deployment point is approximately 40 km, demonstrating effective territory-hovering control performance. This paper provides theoretical support and technical reference for the rapid deployment and long-term territory-hovering of stratospheric aerostats.