maplphlp.m

ADSP TOOLBOX: Version 2.0 and gui m-files

function maplphlp
%MAPLPHLP Help file for MAPLPGUI.


% 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= 'FILTER TRANSFORMATIONS';
    page1= ... 
        ['                                                 '
         ' This GUI allows you to transform a lowpass      '
         ' analog or digital filter to other types such    ' 
         ' as highpass, bandpass etc.                      '
         ' The conversion may be analog-to-analog          '
         ' or analog-to-digital or digital-to-digital.     '
         '                                                 '  
         ' Select the transformation (LP2LP, LP2HP etc).   '  
         ' Edit the numerator and denominator arrays of    '
         ' the transfer function and values for the        '
         ' band edge(s) the cutoff frequency etc.          '
         ' ALL FREQUENCIES ARE IN Hz                       '  
         '                                                 '  
         ' Press plot to display the gain of the           '
         ' original and transformed filter.                '
         '                                                 '  
         ' 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.   '
         '                                                 '
         ' You can enter workspace variables into the      '
         ' numerator and denominator fields if prefixed    '
         ' by W. For example, the variable name xyz        '
         ' must be entered as Wxyz                         '
         '                                                 '
         '                                                 '
         ' M-FILE NAME:  maplpgui                          '];

    helpgui(tit_str,page1,page2);