Scilab is free and open source software for numerical computation providing a powerful computing environment for engineering and scientific applications. In this experiment ,a digital butterworth filter was designed and implemented on Scilab software.
The parameters of the required filter such as Passband Attenuation, Passband Frequency, Stopband Attenuation and Stopband Frequency are given by the user. Based on these parameters, a digital butterworth filter (LPF or HPF) was designed using Bi-Linear Transformation(BLT) Method. The normalized transfer function is calculated according to the given filter.Also their magnitude and frequency responses were plotted.
Scilab is good platform for waveform analysis....
ReplyDeleteButterworth filters can be used to obtain a flat frequency response as it has no ripples in passband as well as stopband
ReplyDeleteButterworth filter gives wide transition band which should be avoided.
ReplyDeleteButterworth filter gives wide transition band which should be avoided.
ReplyDeletePreferred where variations in amplitude can't be tolerated
ReplyDeleteThere are no ripples present in the magnitude response.
ReplyDeleteCompared with a Chebyshev Type I/Type II filter or an elliptic filter, the Butterworth filter has a slower roll-off
ReplyDelete