DTFT derivation

Discussion in 'Homework Help' started by Tera-Scale, Apr 27, 2013.

  1. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    Hi,
    I am trying to derive a signal in time domain to DTFT.

    Do I have any mistake in my derivation (attached) because I cannot agree with the answer.

    thanks
     
  2. JITHINSMMB

    New Member

    May 17, 2010
    9
    1
    I feel some error in first step. no Fourier transform is defined for alpha greater than 1.
     
    Tera-Scale likes this.
  3. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    thats what I first thought .. but then I was in doubt when I had to change the limits (signs) and alpha goes to the denominator to become 'absolutely summable' I guess. thanks
     
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