基于多速率滤波器组的宽带调制解调器设计

R. Sadr, Dan Raphaeli, S. Hinedi
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引用次数: 1

摘要

提出了一种全数字宽带调制解调器结构的新方法。该方法的主要特点是处理速率低于奈奎斯特速率(输入采样率),甚至低于符号速率。由于可以自由选择处理速率,设计人员可以任意选择和使用数字元件,而不受集成电路技术速度的影响。这种架构特别适合于高数据速率的应用,包括千兆比特/秒卫星频道、多址、光链路和交互式有线电视。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wideband modem design based on multirate filter banks
A new approach for the architecture of an all digital wideband modem is presented. The key feature of this approach is a lower processing rate than the Nyquist rate (the input sampling rate) and even the symbol rate. Due to the freedom in choosing the processing rate, the designer is able to arbitrarily select and use digital components, independent of the speed of the integrated circuit technology. This architecture is particularly suited for high data rates with applications to giga-bit/second satellite channels, multiple access, optical links and interactive cable-TV.
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