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arXiv 1502.07055cs.AR
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一种用于FPGA实现的面积有效FFT算法的新结构

A Novel Architecture of Area Efficient FFT Algorithm for FPGA Implementation

Atin Mukherjee, Amitabha Sinha, Debesh Choudhury

摘要:

大量样本的快速傅里叶变换(FFT)需要大量的现场可编程门阵列(FPGA)硬件资源,其面积和功耗都比较大。在本文中,我们提出了一个面积有效的FFT处理器的结构,重复使用蝶形元件多次。FFT处理器采用VHDL语言进行了仿真,并在Virtex-6 FPGA上进行了验证。所提出的架构优于传统架构的$N$点FFT处理器的面积方面,这是减少了一个因素的$log_N 2$,在处理时间可以忽略不计的增加。

英文摘要:

Fast Fourier transform (FFT) of large number of samples requires huge hardware resources of field programmable gate arrays (FPGA), which needs more area and power. In this paper, we present an area efficient architecture of FFT processor that reuses the butterfly elements several times. The FFT processor is simulated using VHDL and the results are validated on a Virtex-6 FPGA. The proposed architecture outperforms the conventional architecture of a $N$-point FFT processor in terms of area which is reduced by a factor of $log_N 2$ with negligible increase in processing time.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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