| 基于FPGA的新型浮点FFT处理器设计 |
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| 引用本文： | 范展,梁国龙,刘洋.基于FPGA的新型浮点FFT处理器设计[J].电子技术应用,2008,34(5):23-26. |
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| 作者姓名： | 范展 梁国龙 刘洋 |
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| 作者单位： | 哈尔滨工程大学水声工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 针对现有FFT算法结构复杂、难以并行扩展的问题,提出了一种改进的FFT算法,在此基础上设计了一种基于浮点运算的FFT处理器,并进行了仿真验证。结果表明,新算法大大简化了系统结构,减少了系统的硬件开销,非常容易并行实现,且显著提高了运算效率,完成一次N点的FFT运算只需要N/2个时钟,完全满足实时信号处理的要求。
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| 关 键 词： | 改进的FFT算法 浮点运算 实时信号处理 |
Design of a new floating-point FFT processor based on FPGA |
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| FAN Zhan,LIANG Guo Long,LIU Yang.Design of a new floating-point FFT processor based on FPGA[J].Application of Electronic Technique,2008,34(5):23-26. |
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| Authors: | FAN Zhan LIANG Guo Long LIU Yang |
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| Affiliation: | FAN Zhan,LIANG Guo Long,LIU Yang (College of Underwater Acoustical Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Aiming at the problem in the existing FFT algorithm structure, which is not only complex but difficult to realize parallel expansion, a way of improved FFT algorithm is proposed, and a new floating -point FFT processor is designed in this pa- per. Simulation based on the Modelsim has carried on. The results indicated that the new algorithm is able to simplify the system structure greatly, reduce hardware consumption, and is easy to carry out parallel realization. Completing a N-points FFT only needs N/2 clo... |
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| Keywords: | Improved FFT algorithm Floating-point operate Real-time signal processing |
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