随着技术的发展和应用需求的多样化,传统的“烟囱式冶发展的卫星网络存在的功能单一,相互孤立,运行依赖于地面等问题逐渐凸显,不能满足我国军事、经济和人民生活水平发展的迫切需求。天地一体化网络综合利用新型信息网络技术,充分发挥天基、地基等网络的优势,可以实现支撑国家重大战略行动,促进多元信息传输共享。天地一体化网络主要由天基网络、空基网络、海基网络、地面移动网络等组成。,结合地面网络化技术的发展,天地一体化网络应该具有向智慧化、协同化、标识化发展,和从“以主机为中心冶向“以信息为中心冶过渡的趋势。同时,提出天地一体化网络的发展也面临组网协议、安全保障、互联融合、在轨验证等诸多方面的挑战。

Traditional satellite networks develops in the way of “chimney冶. With the development of technology and diversification of applications, the problems of traditional satellite networks, such as unitary function, isolated from each other, and satellites operations rely on the ground systems, are becoming sharper and sharper. The traditional satellite networks cannot satisfy the urgent needs of military, economy, and people's living standard. The space-ground integrated network makes comprehensive use of novel information network technology and takes advantage of space-based, and ground-based networks, which can support national strategic actions and promote the transmission and sharing of multivariate information. The space-ground integrated network is mainly composed of space-based network and ground-based network, and contains aircrafts networks, sea-based networks, and ground mobile network. According to the development of ground network technology, the space-ground integrated network should have the trend of smartness, coordination, and identification, and the trend of transforming from “host-centric”to” information-centric”.Meanwhile, the development of the space-ground integrated network faces many challenges, such as networking protocol, security guarantee, interconnection and fusion, and on orbit verification.

TN92