接着简述无线定位的几种常用技术，并分别说明时分多址和码分多址两类蜂窝网所用无线定位技术的情况。
Then, it briefly mentions the current technologies used for the wireless location including methods used by TDMA and CDMA cellular networks.
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。
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.
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。”
Wireless telecommunications system with CDMA, FDMA and TDMA multiple access component, especially 'JD-CDMD' telecommunications system with hybrid multiple access techniques.
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