dffthlp.m

trabajos en matlab para verificar son muy buenos

function dffthlp
% DFFTHLP Help file for DFFTGUI


% 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= 'The FFT AND WINDOWING';
    page1= ...                                          
        ['                                                 '
         ' This GUI plots the FFT of sampled sinusoids     ' 
         '                                                 '   
         ' Edit values for the magnitude, frequency and    '
         ' phase and press ADD to accept.                  '
         ' To EDIT an added signal click on the item in    '
         ' in the CT Signal area to highlight it. Then,    '
         ' edit its values and click on the item AGAIN.    '
         '                                                 '
         ' To DELETE a signal component, highlight it      '
         ' and press the delete button.                    '
         '                                                 '
         ' Select the sampling rate, signal length N, the  '  
         ' zero-padded length, the window (if any)         '
         ' and its associated parameters (if any).         '
         '                                                 '   
         ' Press PLOT to display the results.              '
         ' If AUTO is on, plots are dynamically updated.   '
         ' You may plot the linear or dB FFT magnitude     '];
 

    page2= ...                                          
        [' SPECIAL FEATURES                                ' 
         '                                                 '
         ' If the length is < 128, the FFT magnitude is    '
         ' plotted using a stem plot, else a curve.        '
         '                                                 '
         ' 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:  dfftgui                           '];

    helpgui(tit_str,page1,page2);