| 一种新型高效的FFT处理器设计及应用 |
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| 引用本文： | 傅亮,徐元欣,张明.一种新型高效的FFT处理器设计及应用[J].电视技术,2005(8):32-34. |
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| 作者姓名： | 傅亮 徐元欣 张明 |
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| 作者单位： | 浙江大学,信息与电子工程系,浙江,杭州,310027 |
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| 摘 要： | 描述了一种高效的FFT(fast Fourier transform)流水线结构,采用这种流水线结构不仅能提高数据速率,而且能有效减小设计的规模.作为OFDM(orthogonal frequency division multiplexing)系统实现的关键部分,FFT的设计关系到整个系统的实现规模.作为应用之一,笔者在DVB-T接收机中采用了这种FFT结构,实现了对2K/8K双模式的解调.该结构还可方便地应用到其他应用FFT的场合,且易于实现多种模式的并存.
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| 关 键 词： | 快速傅里叶变换 流水线 多模式 |
| 文章编号： | 1002-8692(2005)08-0032-03 |
| 收稿时间： | 2005-06-22 |
| 修稿时间： | 2005年6月22日 |
Design and Applications of a New Type of FFT Processor with High Efficiency |
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| Fu Liang,XU Yuan-xin,ZHANG Ming.Design and Applications of a New Type of FFT Processor with High Efficiency[J].Tv Engineering,2005(8):32-34. |
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| Authors: | Fu Liang XU Yuan-xin ZHANG Ming |
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| Abstract: | In this paper, we present a universal and efficient architecture of a pipelined FFT (Fast Fourier Transform) processor, which can enhance data throughput, and reduce the scale of the design. As an important part of OFDM (Orthogonal Frequency Division Multiplexing) implementation, the design of FFT processor touches the scale of the whole system. We applied this architecture to our DVB-T receiver to demodulate OFDM symbols for 2K/8K dual-mode. Further more, it can be applied conveniently in any other cases of using FFT, especially for multi-mode. |
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| Keywords: | FFT pipeline multi-mode |
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