secret satellite 中文意思是什麼
secret satellite
解釋
秘密衛星-
With the development of information technology and internet, net communication, satellite communication, all kinds of conference call and in some special conditions, like underwater acoustic communication demand it more reliable and can keep secret and be low probability of interception. because of the effect of multipath and doppler shift, the signals through the channel fade rapidly
隨著人類向信息技術和信息網路時代的邁進，網路通信、衛星通信、各種電話會議以及某些特殊的通信場合（如水聲通信）中都對通信的保密技術、低截獲率和可靠性提出了更迫切的需要和更高的要求。
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