Monday, 24 April 2017

EXP5:Butterworth IIR Filter

In this experiment a digital filter was designed using analog filter. Here we used scilab software. Digital butterworth filter can be designed using two methods impulse invariant method and BLT method. For HPF and LPF,all poles lie in the unit circle.Hence filters are stable. But  the value of Ap in HPF and As in LPF are not completely verified, so we need to increase the order of the filter.
Posted by at

7 comments:

  1. Unknown24 April 2017 at 08:28

    Its only disadvantage is difficulty in implementation due to higher order.

    ReplyDelete
    Replies
    1. Unknown25 April 2017 at 22:22

      Yes,in such a case we can use Chebyshev filter

      Delete
  2. Unknown25 April 2017 at 22:41

    Magnitude response is monotonic in nature.

    ReplyDelete
  3. Unknown28 April 2017 at 05:12

    Gives a flat band response

    ReplyDelete
  4. Unknown28 April 2017 at 05:20

    We have to input parameters such as Ap,As,stop band and pass band frequency when we execute the scilab code

    ReplyDelete
  5. Unknown28 April 2017 at 06:48

    Transition width is more compared to Butterworth filter

    ReplyDelete

Subscribe to: Post Comments (Atom)