radio protection channel 中文意思是什麼

radio protection channel 解釋
無線電保護通路
  • radio : n. 1. 無線電訊[電報,電話];無線電,射電。2. 無線電廣播;無線電(廣播)臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播];(向…)作無線電廣播[傳送];用X射線拍照;用鐳醫治。
  • protection : n 1 保護,保衛,防禦,掩護,包庇,照顧 (from; against)。2 保護者,防護物 (against); 〈美俚〉...
  • channel : n 1 水路,水道,渠,溝;海峽;河床,河底。2 (柱等的)槽,凹縫;【機械工程】槽鐵,凹形鐵。3 〈比...
  1. One important feature of radio signals ’ is that the signals are easy to catch and to disturb. in order to disturb the radio signals, parameters, including code rate, modulation, protocol, protection methods and channel coding, about satellite ’ s signals should be known. so, it is possible to receive the data from satellites and obtain lots of information from it, and even to destroy the undesired information

    衛星通信系統的遙控遙測信息都是通過無線通道傳遞,而無線電信號的一個很重要的特性就是發射易被接收、易被干擾,實現干擾的前提是對衛星信號參數的極大了解,這包括明確信號的碼速率、調制方式、所用協議、保密措施及通道編碼等,因此,通過接收衛星數據以獲取大量的未知信息,甚至破壞掉對己的不利信息就成為可能。
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