Tuesday, March 14, 2017

DFT


The aim of this experiment was to perform Discrete Fourier Transform.
We observed that as the value of N (length of signal) increases, frequency spacing increases and error decreases.
We plotted the magnitude spectrum when N=4 and also after zero padding i.e when N=8. The magnitude spectrum was found to be symmetric.

Link for code:https://drive.google.com/drive/folders/0B076kcYDr0DCbzZndW5SMGdjMmM
Posted by at

16 comments:

  1. UnknownMarch 15, 2017 at 11:48 AM

    Nice concept

    ReplyDelete
  2. shrinish_001March 16, 2017 at 8:42 AM

    Could have made it a bit more elaborate.But nice content overall .

    ReplyDelete
    Replies
    1. chaitali vartakMarch 16, 2017 at 9:04 AM

      Yes.It was done for two values of N namely N=4 and N=8. IDFT was performed to verify the result.We observed that as the spacing between the values reduces the value of N increases. Also the quality of spectrum obtainedimproves. By apending the input signal by zeros the resolution error reduces.

      Delete
  3. UnknownMarch 16, 2017 at 9:06 AM

    Well explained.

    ReplyDelete
  4. Meet PatelMarch 16, 2017 at 9:22 AM

    Short and simple.

    ReplyDelete
  5. Ankur MahadikMarch 16, 2017 at 11:08 AM

    Informative

    ReplyDelete
  6. UnknownMarch 16, 2017 at 12:25 PM

    Good information..

    ReplyDelete
  7. UnknownMarch 17, 2017 at 4:20 AM

    Nicely explained

    ReplyDelete
  8. UnknownApril 25, 2017 at 10:32 PM

    Good

    ReplyDelete
  9. kaustubh churiApril 25, 2017 at 10:33 PM

    This comment has been removed by the author.

    ReplyDelete
  10. kaustubh churiApril 25, 2017 at 10:33 PM

    This comment has been removed by the author.

    ReplyDelete
  11. UnknownApril 25, 2017 at 10:49 PM

    Nice content
    Informative
    Well explained

    ReplyDelete
  12. UnknownApril 25, 2017 at 10:55 PM

    Nice

    ReplyDelete
  13. UnknownApril 26, 2017 at 1:59 AM

    GOOD

    ReplyDelete
  14. UnknownApril 26, 2017 at 5:04 AM

    Well explained conceptually!

    ReplyDelete
  15. shrinish_001April 26, 2017 at 8:11 AM

    DFT has widespread applications in SpectralAnalysis of systems, LTI systems, Calculating convolution of signals,multiplication of large polynomials, noise removal et

    ReplyDelete

Subscribe to: Post Comments (Atom)