Demand Analysis of Task Planning for the Cislunar Communication and Navigation Constellation
- Paper ID
97074
- DOI
- author
- company
Deep Space Exploration Laboratory (Tiandu Laboratory); Northwestern Polytechnical University，NPU
- country
China
- year
2025
- abstract
The cislunar communication and navigation constellation, as a critical information infrastructure in the cislunar space, provides essential relay communication, positioning, navigation, and timing (PNT) services to various users including cislunar space vehicles, lunar probes, lunar landers, and astronauts. Compared with existing Earth-based constellations, the overall task scheduling and planning for the cislunar communication and navigation constellation present numerous challenges, primarily in three areas: First, the unique and complex cislunar space environment poses significant threats to the stable and secure operation of the constellation; second, the diverse and widely distributed user base has varying functional requirements, complicating the analysis and description of constellation tasks; third, the execution of constellation tasks involves multiple constraints that are interrelated, directly impacting task implementation methods and adding complexity to solving the planning problem. To ensure smooth task planning, it is imperative to conduct a thorough analysis of the task planning requirements. This paper begins by analyzing the operational environmental characteristics of the cislunar communication and navigation constellation, identifying sources of faults and threats, and examining the communication and navigation needs of multiple user types. By studying the priority levels and potential conflicts among various tasks, an abstract method for task information is established, clarifying the regular task objectives of the constellation and defining the safety management requirements for constellation operations in case of faults.This paper analyzes the constraints of cislunar satellite in terms of platform, resources and mission, studies the correlation between constraints and their impact on the mission, and designs the simplification strategy and quantitative description method of complex constraints. Through the correlation analysis of constellation tasks, the framework of autonomous task planning system, objective function and planning problem model are established, which lays a foundation for the follow-up research on constellation autonomous task planning strategy.