Classical FIR Filter Design

The classical FIR Design panel (Fig. 2) is used to design FIR filters.
These filters include the classic types such aslowpass, highpass, bandpass, and bandstop and employ the Parks-Mclellan equiripple FIR filter design algorithm.This panel is very similar to the Classical IIR Design panel and operates in much the same way. The panel includesa graphical interface with the Magnitude vs Frequency cursors and plot on the left side and a text-based interface withdigital controls on the right side. You design classical FIR filters adjusting the desired filter specifications.
Thedesired passband and stopband requirements define a filter specification. You define the filter requirements by usingeither text entry or the cursors in the Magnitude vs Frequency graph. As the cursors are moved, the text entries areupdated accordingly.