Howtosignalprocessing
![IDFT of $Y[k]=2X[k]$ for even $k$](https://howtosignalprocessing.com/storage/img/images_2/idft_of_yk2xk_for_even_k.jpg)
How do you calculate Idft?
The IDFT is defined as(11.4. 2)an≡1N∑m=1NAme2πin−1m−1N≡IDFTAmnfor n=1 to N.
What is K in DFT formula?
k is the index of DFT output in frequency domain, k=−N/2 k = − N / 2 , ⋯,−1,0,1 ⋯ , − 1 , 0 , 1 , ⋯,N/2−1.
The IDFT is defined as(11.4. 2)an≡1N∑m=1NAme2πin−1m−1N≡IDFTAmnfor n=1 to N.
k is the index of DFT output in frequency domain, k=−N/2 k = − N / 2 , ⋯,−1,0,1 ⋯ , − 1 , 0 , 1 , ⋯,N/2−1.
