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频分多址,时分多址,码分多址等技术的综合介绍

于 2021-05-07 发布
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多址技术分为频分多址(FDMA)、时分多址(TDMA)、码分多址(CDMA)、空分多址(SDMA)。频分多址是以不同的频率信道实现通信。时分多址是以不同的时隙实现通信。码分多址是以不同的代码序列来实现通信的。空分多址是以不同的方位信息实现多址通信的。  TACS模拟通信采用的是频分复用技术  GSM数字通信采用的是频分复用和时分复用相结合的多址技术  CDMA采用码分多址技术。

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