Let 𝐱(𝐧) be a real sequence of length N and its N-point DFT is X(k), prove the following
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- Опубликовано: 10 окт 2022
- Let 𝐱(𝐧) be a real sequence of length N and its N-point DFT is X(k), show that
𝐗(𝐍−𝐊)=𝐗^∗ (𝐊)
𝐗(𝟎) is real
If N is even, then 𝐗(𝐍/𝟐) is real
![Compute N point DFT of a sequence 𝒙(𝒏)=𝟏/𝟐+𝟏/𝟐 𝒄𝒐𝒔[𝟐𝝅/𝑵 (𝒏−𝑵/𝟐)]](http://i.ytimg.com/vi/GQRB5X3caS0/mqdefault.jpg)
