In this experiment, we designed a butterworth filter using SCILAB for implementation of the code.Input parameters such as As,Ap,Fs,Fp and F were used to design the filters.With the help of this parameters order of the filter,cutoff frequency,normalized filter and denormalized filter was calculated.
Graph was observed between Mag(in db) vs Frequency (in Hz).From the output we observed that the magnitude response is monotonic and poles lies inside unit circle which is the condition of stablilty.We used BLT method for design of filter,
Graph was observed between Mag(in db) vs Frequency (in Hz).From the output we observed that the magnitude response is monotonic and poles lies inside unit circle which is the condition of stablilty.We used BLT method for design of filter,
Butterworth being an IIR filter has lower stability compared to a FIR filter
ReplyDeleteYa it is less stable.
DeleteButter worth filter was well explained
ReplyDeleteThank you.
DeleteWell explained..BLT has different equations for conversion from analog to digital frequency and poles.
ReplyDeleteYes the formulas are different for both IIM and BLT method.
DeleteIn the last part of the algorithm Impulse Invariant method can also be used
ReplyDeleteWe have to input parameters such as Ap,As,stop band and pass band frequency when we execute the scilab code
ReplyDeleteButterworth filter is monotonic in nature
ReplyDeleteYes it is monotonic.
DeleteWell explained
ReplyDeleteButterworth filters have no ripples
ReplyDelete