example1.m

AFD - Advanced Filter Design using MATLABMiroslav D. Lutovac, Dejan V. Tosicversion 1.00 released 15

function dr = auxfilt(x0,y0,dx,ds,F)
% auxfilt.m  Digital filter realization 
%            generated from the drawing window of the toolbox
%           "Drawing Digital Filter Realizations v1.0 beta"
%            by Miroslav D. Lutovac and Dejan V. Tosic (c) 1999 
%                                       
% Note:      Edit this file by an ASCII text editor and
%            save the new file under a different name.
%                                       
% See also:  Miroslav D. Lutovac, Dejan V. Tosic, Brian L. Evans
%           "Advanced Filter Design for Signal Processing
%            Using MATLAB and Mathematica"
%            http://galeb.etf.bg.ac.yu/~lutovac
%            http://telekom.etf.bg.ac.yu/~tosic
%                                       
% Contact:   Please, send your comments at
%             [e-mail]
%             [e-mail]
%                                       
%            Your suggestions are appreciated!
%                                       
% call   auxfilt(0,0,4,5,10)
% creation date: 19-Sep-99  time: 22:15
Nx = 7;
Ny = 5;
whitebg(figure(gcf),[1 1 1]);
dc = 'k';
x = zeros(1,4*Nx);
y = zeros(1,4*Ny);
for indx = 1:4*Nx
 x(indx) = x0 + dx*indx/4;
end
for indy = 1:4*Ny
 y(indy) = y0 + dx*indy/4;
end
drawin(x(3), y(9), 'IN', 2, ds, F, dc);                      
drawadd(x(3),y(9),1,0,3,2,'',1,ds/3,F,dc);                   
drawmult(x(4), y(8), x(8), 'a', ' ' ,0, ds/3, F, dc);        
drawadd(x(8),y(8),0,3,1,2,'',3,ds/3,F,dc);                   
drawlvh(x(5), y(9),  x(9),  y(9), 0, dc);                    
drawnode(x(9), y(9), ' ', 1, 1, F, dc);                      
drawadd(x(3),y(7),1,3,2,0,'',3,ds/3,F,dc);                   
drawlvh(x(9), y(7),  x(5),  y(7), 0, dc);                    
drawnode(x(4), y(8), ' ', 1, 1, F, dc);                      
drawdel(x(9), y(7), x(12), ' ', '-1' ,14, ds/2, F, dc);      
drawline(x(3), y(7), x(3), y(5), dc);                        
drawout(x(3), y(5), 'OUT', 0, ds, F, dc);                    
drawline(x(9), y(9), x(12), y(9), dc);                       
drawtext(x(5), y(10), 'Basic filter block', F+2, dc);        
drawnode(x(9), y(7), ' ', 1, 1, F,dc);
axis('equal')
axis('off')