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The FPA was present in 92% of the series, and the internal diameter has complemented relationship with the FDMA.
第一跖底动脉出现率为92%,口径与第一跖背动脉有互补关系。
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Wireless telecommunications system with CDMA, FDMA and TDMA multiple access component, especially 'JD-CDMD' telecommunications system with hybrid multiple access techniques.
具有码分,频分和时分多址组成部分的无线通信系统,尤其是具有混合多址技术的“联合检测码分多址通信系统。”
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The author has described several key techniques for improving the capacity of CDMA digital celullar system, comparing to the spectral efficiency of FDMA and TDMA cellular system.
本文对照频分多址和时分多址系统的频谱效率,阐述了码分多址系统提高系统容量的几项关键技术。
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A method and apparatus for performing uplink transmission in a multiple-input multiple-output (MIMO) single carrier frequency division multiple access (SC-FDMA) system are disclosed.
公开一种在多输入多输出(MIMO)单载波频分多址(SC - FDMA)系统中用于执行上行链路传输的方法和设备。
1. FDMA(Frequency Division Multiple Access)即频分多址,把总带宽分隔成多个正交信道,每个用户占用一个信道,被广泛用于有线和微波通信系统。 FDMA的优点为信道复用率高,容许复用路数多,分路方便,是模拟通信中最主要的一种复用方式。其主要缺点是设备生产较复杂,因滤波器件特性不够理想和信道内存在非线性会产生路间干扰。