Space-air-ground integrated networks covers the sky, the ground, and the sea. They are composed of satellites with various function and heights, high-altitude platforms, near-earth communication platforms, and land as well as sea-based networks. Hereby, a three-dimensional wide-area coverage communication network with the ground mobile network as the foundation and various non-ground communications as an important supplement is build. It will provide seamless connectivity between different areas, including the ground, the sky, and the sea, and offer users a variety of satellite Internet services and applications.

The research direction focuses on the architecture and distributed intelligence in space-air-ground integrated networks. Specific research areas: the design of large-scale satellite constellations, dynamic topology, routing protocols, beamforming and control, phased array antenna design, etc. It also intersects and integrates with disciplines such as biology and aerospace to establish new, fusion network theories and methods. The team has also built a simulation and testing platform for the space-air-ground integrated networks, providing a testing and evaluation environment for universities, research institutions, and enterprises.

Satellite constellation simulation

STK + Matlab is used for satellite simulation.

The space orbit, ground trajectory, coverage, inter-satellite links and transmission delay of satellite constellation are studied.

Sources of data: Official channels such as ITU, FCC, space-track.org, or open data platforms such as celestrak.org.