| 高速3780点FFT处理器的设计与实现 |
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| 引用本文： | 解春云,刘光辉,牛俊峰.高速3780点FFT处理器的设计与实现[J].电视技术,2012,36(5):1-4,11. |
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| 作者姓名： | 解春云 刘光辉 牛俊峰 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054 |
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| 基金项目： | 国家自然科学基金，四川省青年科技基金，中央高校基本科研基金 |
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| 摘 要： | 介绍了地面数字电视多媒体广播传输系统(DTMB)中3 780点FFT处理器的设计与实现。通过综合利用混合基算法、素因子算法和WFTA算法,来完成3 780点FFT的算法设计。采用流水线结构进行硬件实现,为进一步提高系统吞吐率,其内部3,4,5,7,9点WFTA运算单元均采用并行数据处理方式。
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| 关 键 词： | 快速傅里叶变换 素因子算法 WFTA 流水线结构 |
Design and Implementation of 3 780-Point FFT Processor |
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| XIE Chunyun
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LIU Guanghui
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NIU Junfeng.Design and Implementation of 3 780-Point FFT Processor[J].Tv Engineering,2012,36(5):1-4,11. |
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| Authors: | XIE Chunyun LIU Guanghui NIU Junfeng |
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| Affiliation: | ( School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | A implementation method of a design for high-speed 3 780-Point FFT(Fast Fourier Transform) processor in the(Digital Television Terrestrial Multimedia Broadcasting) DTMB system is introduced in this paper.The 3 780-Point FFT is implemented by means of Common Factor Algorithm(CFA),Prime Factor Algorithm(PFA) and Winograd Fast Fourier Transform Algorithm(WFTA).The pipeline structure is used for the hardware design of 3 780-Point FFT processor,while the parallel data processing methods are used to the internal 3,4,5,7,9 point WFTA operation unit,which greatly increases the throughput of the system. |
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| Keywords: | FFT PFA WFTA pipeline processing |
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