新型工业化
新型工業化
신형공업화
New Industrialization Straregy
2011年
4期
8-15
,共8页
模式识别与智能系统%DFT%脉动阵列%一阶矩
模式識彆與智能繫統%DFT%脈動陣列%一階矩
모식식별여지능계통%DFT%맥동진렬%일계구
Pattern Recognition and Intelligence Systems%DFT%systolic%first-order moments
离散傅里叶变换是数字信号处理领域的一个重要工具，鉴于此，提出了一种新的离散傅里叶变换方法，通过简单的数学推导将离散傅里叶变换计算转换为一阶矩计算；显然，仅仅利用加法就能有效地计算一阶矩，并进一步设计了一个快速脉动阵列来实现离散傅里叶变换，与现有方法相比，所提出的方法更具适用性。
離散傅裏葉變換是數字信號處理領域的一箇重要工具，鑒于此，提齣瞭一種新的離散傅裏葉變換方法，通過簡單的數學推導將離散傅裏葉變換計算轉換為一階矩計算；顯然，僅僅利用加法就能有效地計算一階矩，併進一步設計瞭一箇快速脈動陣列來實現離散傅裏葉變換，與現有方法相比，所提齣的方法更具適用性。
리산부리협변환시수자신호처리영역적일개중요공구，감우차，제출료일충신적리산부리협변환방법，통과간단적수학추도장리산부리협변환계산전환위일계구계산；현연，부부이용가법취능유효지계산일계구，병진일보설계료일개쾌속맥동진렬래실현리산부리협변환，여현유방법상비，소제출적방법경구괄용성。
The discrete fourier transform (DFT) is an important tool in digital signal processing. In this paper, a novel approach to DFT is proposed. The computation of DFT is transformed to the computation of the first-order moments by the simple mathematical deductions. It is well known that the first-order moments can be computed efficiently using only additions. An efficient systolic array is designed to implement DFT. The comparison with the existing methods shows the advantages of our method. The approach is also applicable to DFT inverses.
