The invention discloses a
data transmission system and method based on optical
remote sensing data. The
system comprises a user terminal, a
satellite constellation and a ground control center, wherein the ground control center is configured with a terminal position and
ephemeris management module, an environment modeling module, a track and
sight distance prediction module and a
resource scheduling optimization module. A high-precision three-dimensional environment model around a user is constructed by introducing optical
remote sensing, and in combination with
satellite trajectory calculation and
ray tracing /
machine learning prediction, link shielding is judged and avoided in advance. Based on a prediction result, the
system can perform high-speed
burst transmission in a visible window or actively complete
satellite switching before shielding, so that the continuity and reliability of satellite direct connection communication in complex environments such as cities and canyons are remarkably improved. According to the invention, the limitation of passive switching in the prior art is broken through, the
resource utilization rate and the user experience can be effectively improved, and
technical support is provided for constructing an ubiquitous space-ground integrated communication network.