| 要約: | Compared to traditional high-throughput satellites and ground networks, low earth orbit (LEO) satellite Internet offers significant advantages such as wide coverage, low latency, broadband capacity, and cost-effectiveness. In recent years, countries worldwide were actively deployed LEO constellation systems, and were characteristics of accelerated deployment, rapid iteration, and continuous evolution. However, the rapid expansion of these systems also posed elaborated challenges for system design and performance evaluation. Through the investigatione of the development status of LEO constellation systems and application of model-based system engineering (MBSE) in relevant fields, the key elements of their design were elaborated, then a MBSE process to construct the design model of constellation systems along with the performance evaluation was demonstrated. Additionally, the key technologies that need to be addressed in LEO constellation system design was discussed. Finally, the application of relevant methods in the design of LEO constellation systems was prospected.
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