By emulating the global traffic service through a LEO satellite mobile communication system under different access schemes, the performance of the networks are analyzed.

并参照某实际系统参数，对不同接入方案准则下的全球话务服务进行了系统仿真，得到了相应的系统性能参数。

youdao

With digital group, satellite navigation, geographic information service and other functions provided by satellite communication, it achieved mobile emergency communication transmission on wheels.

以卫星通信为支撑集成数字集群、卫星导航和地理信息服务等功能，实现了车载机动应急通信传输。

youdao