Combined with the characteristics of Globalstar system, we select typical channel and link parameters in estimation to yield the number of afforded channels and the system traffic capacity.
结合全球星系统的特点，选择了典型的信道和链路参数进行估算，分别得到了系统的可供信道量和系统通信容量。
The paper inquired into the characteristic, system architecture of spatial data warehouse and valued crop yield estimation methods we have now.
为此，探讨了空间数据仓库的特征、体系结构，对现有农作物估产方法进行了评价。
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