low altitude satellite 中文意思是什麼

low altitude satellite 解釋
低高度衛星低空衛星
  • low : adj 1 低的;淺的,矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • altitude : n. 1. 高,高度;海拔(高度)。2. 【天文學】地平緯度。3. 〈常 pl. 〉高處。4. 高位,高等。5. 【數學】頂垂線,高線。
  • satellite : n 1 【天文學】衛星;人造衛星;〈比喻〉衛星國。2 隨從,幫閑者,食客。3 【生物學】隨體(指染色體)...
  1. 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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