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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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electric motor pump
electric multiple unit
electric multipole
electric multipole expansion
electric multipole moment
electric multipole radiation
Electric & Musical Industries (China), Ltd.
Electric & Musical Industries, Ltd.
electric network
electric network expansion planning
electric neutrality
electric neutrality, electroneutrality
electric noise
electric nonelectric initiation system
electric ophthalmia
electric(optical) cable fault locator
electric overspeed protection device
electric parameter measurement
electric-pneumatic hybrid regulatory systems
[electric] polarization
electric polarization
electric potential
electric potential difference
electric potential drop
electric potential energy
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