This was the first experiment implemented on scilab. Scilab's help browser was used to get acquainted with the functions available in scilab. The objective of this experiment was to design a digital butterworth filter from analog filter. Analog filter was designed by the same method as studied in class, i.e calculation of normalized and denormalized filter and then using BLT to find digital filter trnasfer function. magnitude response of Digital low pass filter and digital high pass filter was plotted. Pole-zero diagram for both were observed and concluded that since the poles lie within the unit circle, filter must be stable. (hence implementable)
Input specifications as mentioned in the lab manual were obtained from the users and values of pas band and stop band attenuation were verified.
https://drive.google.com/open?id=0B8Ks3rz0S_nzN25zQy1TaDBxSG8
Input specifications as mentioned in the lab manual were obtained from the users and values of pas band and stop band attenuation were verified.
https://drive.google.com/open?id=0B8Ks3rz0S_nzN25zQy1TaDBxSG8
Order of the filter should be increased for better accuracy in values of Ap and As.
ReplyDeleteWe learnt Scilab thorough this experiment in depth.
ReplyDeletedo mention about the monotonic magnitude spectrum
ReplyDelete