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本文对西德数字移动电话系统作了全面的概述。特别对CD900和SD900两个系统作了较详尽的介绍,并对数字与摸拟、FDMA/TDMA、数字宽带/窄带系统作了比较.
This article provides a comprehensive overview of the West German digital mobile phone system. Especially for CD900 and SD900 two systems made a more detailed introduction, and digital and simulation, FDMA / TDMA, digital broadband / narrowband system is compared.