firhlp.m

ADSP TOOLBOX: Version 2.0 and gui m-files

function firhlp
%FIRHLP Help file for FIRGUI.

%========================================================================
    tit_str= 'FIR  DIGITAL FILTER DESIGN';
    page1= ... 
        ['                                                 '
         ' This GUI allows you to design FIR filters.      '
         '                                                 ' 
         ' Select the filter (lowpass, bandpass etc).      '
         ' Select the method (optimal, window based etc).  '
         ' Select the window if activated.                 '  
         ' Edit values for the band edge(s) in HERTZ and   '  
         ' the passband and stopband attenuation in dB     '
         ' and the sampling rate (in Hz).                  ' 
         ' Press AUTO for automated design and plot.       ' 
         ' Press plot to display the magnitude and phase.  '
         '                                                 '
         ' The filter length, prototype cutoff frequency   '
         ' and design attenuations at the band edges are   '
         ' displayed at the bottom.                        '
         '                                                 '
         ' The magnitude display can be linear or in dB.   '    
         ' If AutoPlot is on, plots are automatically      '
         ' updated as the edits or selections are made.    '];
 

    page2= ...                                          
        [' SPECIAL FEATURES                                ' 
         '                                                 '
         ' CURSOR: Turn it on and then move and click      '
         ' the mouse button inside a plot to activate.     '
         ' The co-ordinates of the mouse are displayed in  '
         ' the upper right corner as you move the mouse.   '
         '                                                 '
         ' To maximize or minimize a plot, move mouse      '
         ' into the plot area and DOUBLE CLICK.            '
         '                                                 '
         ' M-FILE NAME:  firgui                            '];

    helpgui(tit_str,page1,page2);