利用FPGA作为数字信号处理平台来实现可调的衰落带宽以及多径延时。
The adjustable fading bandwidths and additional long delays were implemented by using the relative new signal processing technologies of FPGA device.
在未来宽带移动通信中，存在两个最严峻的挑战：多径衰落信道和带宽效率。
In the future broadband wireless communications, there will be two severe challenges to be faced, which are frequency selective fading channels and bandwidth efficiency.
对于无线移动通信系统来说，面临着系统带宽效率和多径衰落信道等诸多问题的挑战。
The system bandwidth efficiency and the dispersive of wireless channel are the big challenges for the wireless mobile communication system.
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