Deep Space Relay Resource Planning Model Based on Sliding Time Window

When a deep space probe enters into the back of the celestial body, it cannot directly communicate with the earth for TT&C (Telemetry, Tracking & Control) and data transmission. As a transfer station for communication between the earth TT &C station and the deep space probe, the deep space satellite realizes all-weather data transmission between the earth and deep space probe. Because of the exclusivity of the deep space relay satellite communication link, several deep space probes compete for relay resources. Aiming at the problem of relay resource planning for deep space probes, this paper proposes a deep space relay resource planning algorithm based on sliding time window, designs hierarchical planning and scheduling architecture of relay resources, and realizes automatic planning and allocation of relay resources and unified scheduling and management. The practical application results show that the algorithm can meet the requirements of resource planning for celestial backside exploration tasks, improve the efficiency of resource allocation and reduce the rate of resource fragmentation.