IFFT equation in matlab

2013 1 30
0 个回答
2 次查看（30 天）

0 个投票

Dear all, Let say i have this
X(2:N,:) = repmat(X(1,:),N-1,1).*Phase_Rot;                            
x = ifft(X,[],2);                                                    
My question is how can i convert the second line command into ifft equation?

2 个评论
显示 无 隐藏 无

Wayne King
Wayne King 2013-1-30
I'm not sure what you are trying to do here, are you trying to represent the inverse DFT as a matrix operation, where you multiply a Nx1 vector of DFT values to invert the transform?
Matt J
Matt J 2013-1-30
编辑：Matt J 2013-1-30
Incidentally, bsxfun would be more efficient
X(2:N,:) = bsxfun(@times, X(1,:), Phase_Rot);
x = ifft(X,[],2);

请先登录，再进行评论。

请先登录，再回答此问题。

回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Data Type Conversion 的更多信息

标签

提问:

sarah
sarah
2013-1-30

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by