| 对数快速傅氏变换 |
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| 引用本文： | 王宏远.对数快速傅氏变换[J].华中科技大学学报(自然科学版),1987(5). |
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| 作者姓名： | 王宏远 |
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| 作者单位： | 华中工学院电子信息工程系 |
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| 摘 要： | 本文讨论了对数数字系统中的快速傅里叶变换,分析了对数数字系统中快速傅里叶变换的执行速度及运算误差。理论分析与实验结果均表明对数系统中快速傅里叶变换的速度与精度都优于定点数和浮点数系统,文中还给出了计算机模拟实验的结果。
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| 关 键 词： | 对数 傅里叶变换 数字系统 误差分析 复数方差 二阶矩 |
Fast Fourier Transform Using Logarithmic Algorithm |
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| Wang Hongyuan.Fast Fourier Transform Using Logarithmic Algorithm[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1987(5). |
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| Authors: | Wang Hongyuan |
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| Institution: | Wang Hongyuan |
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| Abstract: | This paper is concerned with fast Fourier transform using logarithmic algorithm. The operating speed and error are discussed. Theoretical analysis and experimental results show that fast Fourier transform using logarithmic algorithm has better performance in both speed and accuracy than those of fixed-point system and floating-point system. The results of computer simulation are also given. |
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| Keywords: | Logarithm Fourier transform Digital system Error analysis Com-plex variance Second moment |
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