针对今后对地观测和空间探测存在的技术、环境、发射、需求、投入等不确定性，作为创新性架构，分离航天器是一种信息换结构的分布式空间系统。这种架构要求簇飞行分布式自主网络，对分离航天器网络拓扑和传输容量等提出了更高要求。针对分离航天器网络拓扑高动态时变空变特性，引力场摄动和传输损耗的随机性，模块节点的存储转发特性，节点间连接间歇性等基础性挑战，本项目将开展簇飞行分离航天器网络拓扑构建、优化和传输容量研究，着重解决建立J2摄动下距离有界的相对运动模型和基于相空间的连接概率计算关键科学问题。在深入研究基于SINR模型的分离航天器网络动态拓扑构建、基于连接的网络拓扑优化控制、基于SINR模型的传输容量及功率优化控制等基础上，揭示分离航天器动态网络拓扑时空演化规律，解决功率约束下分离航天器动态网络拓扑优化控制和传输容量优化等难题，突破分离航天器网络一些关键技术，为构建分离航天器网络提供一些理论支撑。

Representing a novel architecture，fractionated spacecraft is a distributed space system replacing structure with information for earth observation and space exploration in the future, and can be made to react to various forms of uncertainty, ranging from environmental uncertainty, technical uncertainty, launching uncertainty to fluctuations in the acquisition funding stream. And it must have the capability to respond rapidly to these uncertainties by making the spacecraft architecture fundamentally flexible and robust. It requires that the fractionated spacecraft is an autonomous network with cluster flight. As a result, the autonomous network brings a higher requirement to network topology and transmission capacity also. . Facing the fundamental challenges of dynamic time-varying characteristics, J2-perturbed random, storing and forwarding nodes, and intermittent connectivity between nodes, this program will study the network topology and transmission capacity of the autonomous network of the fractionated spacecraft with cluster flight, and solve the key scientific problems about setting the distance-bounded relative motion model with J2 perturbation and computing the connectivity probability based on phase space. Through intensive studying the construction the dynamic topology for the fractionated spacecraft network based on SINR, the optimization and control of network topology based on connectivity, the transmission capacity and its power optimizing control based on SINR, this program will reveal the temporal-spatial evolutionary behaviors of the dynamic network topology, solve some difficult problems about optimizing and controlling the dynamic network topology and the transmission capacity subjecting to limited power for the fractionated spacecraft. Finally, this program will break through some key techniques for the fractionated spacecraft network, and provide theoretical support for building the fractionated spacecraft network.