Frequency sampling - PowerPoint PPT Presentation

Sampling Theorem

Sampling Theorem. 主講者：虞台文. Content. Periodic Sampling Sampling of Band-Limited Signals Aliasing --- Nyquist rate CFT vs. DFT Reconstruction of Band-limited Signals Discrete-Time Processing of Continuous-Time Signals Continuous-Time Processing of Discrete-Time Signals

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 2-L Frequency Sampling Method

 2-L Frequency Sampling Method. 假設 designed filter h [ n ] 的區間為 n  [0 , N −1]. filter 的點數為 N , k = ( N − 1)/2. remember:. H d ( f ) = H d ( f + f s ).  Frequency Sampling 基本精神：. 若 H d ( f ) 是 desired filter 的 discrete-time Fourier transform.

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Lecture 6: Windowing of DFT

Lecture 6: Windowing of DFT. Instructor: Dr. Gleb V. Tcheslavski Contact: gleb@ee.lamar.edu Office Hours: Room 2030 Class web site: http://ee.lamar.edu/gleb/dsp/index.htm. by Steve Higgins. The idea of windowing. - not really practical. (6.2.1).

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