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成对载波多址
释义
成对载波多址
Encyclopedia
工学
【现代通信信号处理技术】
释
paired carried multiple access,PCMA
成对载波多址
两个卫星终端采用同一个频点进行通信,通过卫星转发器透明转发后,下行链路是频域和时域重叠的混合信号,由于通信双方都存有自身所发送信号的样本,可以根据这些样本,利用信号的相关性对自身信号所经过的信道参数(时延、幅度、载波频率、相位)进行估计,以消除混合信号中自身信号的影响,并分离出另一个终端的数据进行解调,从而实现正常通信的技术。
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inorganic nanoparticle-based vector
inorganic new energy materials
inorganic non-metallic materials
inorganic nonmetallic materials technology
inorganic nonmetallic reinforcements
inorganic nutrition
inorganic organic hybrid composites
inorganic origin theory of petroleum
inorganic phase change materials
inorganic pigment
inorganic pollutant
inorganic pollution of water body
inorganic polymer
inorganic polymer matrix composites
inorganic polyporate material
inorganic preparation
inorganic salt
inorganic salt industry
inorganic scintillator
inorganic supermolecule materials
inorganic surface modification
inorganic syntheses
inorganic synthesis
inorganic thermal storage material
inorganic thermal storage materials
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