low altitude satellite 中文意思是什麼
low altitude satellite
解釋
低高度衛星低空衛星-
Several topics on coding and modulation theories of uav communication were discussed in this thesis. by analyzing features of uav communication, difference on three aspect between uav and satellite / civil mobile communication were pointed out, i. e. rapidity of the channel state parameters changing when low - altitude flying, wide range of the signal to noise ratio ( snr ) in receiver, and demand on transmission delay
無人機通信與衛星通信、移動通信有相似之處,也有明顯不同,主要是:無人機低空飛行時通道參數變化劇烈,通信中接收機信噪比變化范圍大,要求傳輸時延短。
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