idealhlp.m

来自「ADSP TOOLBOX: Version 2.0 and gui m-file」· M 代码 · 共 47 行

function idealhlp
% IDEALHLP Help file for IDEALGUI


% 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= 'IDEAL FILTERS';
    page1= ...                                          
        ['                                                 '
         ' This GUI displays the characteristics of        ' 
         ' ideal FIR filters using different windows.      '
         '                                                 '
         ' Select the filter type and edit the cutoff      '
         ' edge(s), filter length N and window type.       '
         ' Then, press PLOT to display the results.        '   
         '                                                 '
         ' The plots display the window function, the      '
         ' windowed impulse response, magnitude spectrum   '
         ' and phase spectrum. The magnitude spectrum      '
         ' can be plotted on a linear or dB scale.         '
         '                                                 '
         ' If AUTOPLOT is pressed, results are updated     '
         ' automatically.                                  '];

    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:  idealgui                          '];

    helpgui(tit_str,page1,page2);