| 对数系统中直接二维快速傅里叶变换 |
| |
| 引用本文： | 张年凤,王宏远.对数系统中直接二维快速傅里叶变换[J].华中科技大学学报(自然科学版),1990(4). |
| |
| 作者姓名： | 张年凤 王宏远 |
| |
| 作者单位： | 华中理工大学电力工程系
(张年凤)，华中理工大学电子与信息工程系(王宏远) |
| |
| 摘 要： | 本文讨论了对数数字系统中的直接二维快速傅里叶变换,给出了系统的硬件结构,对运算误差进行了详细的分析。计算机模拟实验的结果表明:理论结果与实验结果是一致的。
|
| 关 键 词： | 直接二维快速傅里叶变换 对数系统 误差分析 复数方差 |
Direct Two-Dimensional Fast Fourier Transform with a Logarithmic System |
| |
| Zhang Nianfeng Wang Hongyuan.Direct Two-Dimensional Fast Fourier Transform with a Logarithmic System[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1990(4). |
| |
| Authors: | Zhang Nianfeng Wang Hongyuan |
| |
| Institution: | Zhang Nianfeng Wang Hongyuan |
| |
| Abstract: | Direct two-dioensional fast Fourier transform using logarithmic system is investigated. The hardware structure of this system is given and the computation error is analyzed in detail. A theoretical analysis shows that direct two-dimensional fast Fourier transform using the logarithmic system has higher accuracy than that of the floating-point system with the same word length. The result of computer simulation is in agreement with that of the analysis made by the authors. |
| |
| Keywords: | Direct two-dimensional fast Fourier transform Logarithmic system Error analysis Complex variance |
| 本文献已被 CNKI 等数据库收录！ |
