Space & Satellite Technologies

In the space and satellite technologies domain, we study communication and control technologies for space systems against the backdrop of rapid advances in small satellites, pico-satellites, and the growing commercial space industry. In particular, we focus on orbital simulation, distributed control among small satellites, satellite constellations, phased-array antenna formation toward the ground, and radio control in space.

Our lab studies distributed satellite systems in which multiple small satellites cooperate, covering inter-satellite communication protocols, dense formation flying, direct-to-cell connectivity, and simulation platforms that will eventually support space digital twins.

Distributed Beamforming with PicoSat Arrays

By coordinating a large number of pico-satellites, we aim to realize high-gain communication and flexible coverage control that are difficult to achieve with a single satellite. Distributed beamforming with satellite arrays is a key technology for direct-to-cell services that provide communication from space directly to ground terminals.

Using simulation, we evaluate how satellite placement and beamforming conditions affect communication performance and examine the feasibility of practical direct-to-cell connectivity using groups of small satellites.

Dense Formation Flying and Distributed Phased-Array Communication

High-precision phased-array communication requires satellites to maintain accurate relative positioning while acting cooperatively. We study the joint design of dense formation flying and communication control to build flexible communication infrastructure in space.

In the future, we plan to extend this work toward an integrated evaluation platform that connects formation flying, ground communication, and network control with satellite constellations and space digital twins.