Warning: file_put_contents(/home/www/wwwroot/tjuzi.com/cache/56a9886ffe599e1dee9cc5e3756cdf45.txt): failed to open stream: No space left on device in /home/www/wwwroot/tjuzi.com/index.php on line 55 TDMA例句_TDMA英汉例句_TDMA双解例句_橘子化妆朗文词典
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。