dpzhlp.m

ADSP TOOLBOX: Version 2.0 and gui m-files

function dpzhlp
% DPZHLP Help file for DPZGUI


% ADSP Toolbox: Version 2.0 
% For use with "Analog and Digital Signal Processing", 2nd Ed.
% Published by PWS Publishing Co.
%
% Ashok Ambardar, EE Dept. MTU, Houghton, MI 49931, USA
% http://www.ee.mtu/faculty/akambard.html
% e-mail: [e-mail]
% Copyright (c) 1998


%============================================================
    tit_str= 'DIGITAL FILTER DESIGN BY POLE-ZERO PLACEMENT';
    page1= ...                                          
        ['                                                 '
         ' This GUI displays the characteristics of a      ' 
         ' digital filter from its pole-zero locations.    '
         '                                                 ' 
         ' Use the pop-up to select poles or zeros.        '
         ' Edit values for multiplicity, magnitude and     '
         ' angle (degrees) and press ADD.                  '
         ' NOTE: Conjugates are added automatically.       '
         '                                                 '
         ' To EDIT a pole or zero, click on the item in    '
         ' in the information area to highlight it. Then,  '
         ' edit its values and click on the item AGAIN.    '
         '                                                 '
         ' To DELETE a pole or zero, highlight it and      '
         ' press the delete button.                        '
         '                                                 '  
         ' Use the pop-up to select the frequency axis     '
         ' (as F or Omega).                                '
         ' You may also edit the various axis limits       '];

    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.   '
         '                                                 '
         '                                                 '
         ' M-FILE NAME:  dpzgui                            '];

    helpgui(tit_str,page1,page2);