Page 697 - Digital Signal and Image Processing Using MATLAB
P. 697

! ! 2 - 
  0 -         -   	  

  - 
  -


                                     S (f)           (n=3)      (n=2)
                                      e



                                                                                (n=1)

                                                                                 q 2  4
                                                                                 12
                                      Useful                                     q 2
                                       band                                     12
                                    0  0.05  0.1  0.15  0.2  0.25  0.3  0.35  0.4  0.45  0.5 ( F s )
                                              1/8
                                  

   M 78             #    
*  
    
      
  -          .+
                                                 
8    #     
  
   ,

                               
 -   3
	3 	 
   
 	   
+ 
      +  ?	  '     =
+ 
  
  
 
	%
                               
+ 
  
 
+ 

+ +   %	  '+ 
 6     %  
   
 )
                                                  	
+
                               
     %   
         % C
                                     !




2  94
                                     !




        "#
                                      .
                                          
  	 "#       9E
                                        . 
9E 	         ? .          
    ."-   .   >6 
 3  6
                                         . 
. :
                                      "-
                                     9E 	  9
                                     99*W9E 	  9  

  3
                                        	 #   ,      >   -   9 E    /  "-7   : 9E   	    9  / "  -7 ?
                                     -      "      &9   J 9
! 
 & 99*  W9E   	    9
                                        
   "     & ! /  & "/
                                       
   "     &  8       7                $                                                             !                                 C                                                                                  9               &                                                 .
                                     -
                                     -      "      &9   J
! 
 & 99*  W9 E 	    9
                           @ "      	    	
              
	     4
  % -  , 5

                            	 
  -% 	-   C
                                !




2   9E
                                !2      "     "  <  	 T     / .       T
                                (
  
      
          6
         :    >
                                	  -      !9   $  #"
                                	
	 "#      "  "/ 
  , 	  >(    	
"/ 3( "
"
                                 
"&3"  >	  9 J
   9*
  = 9 J>
                                 #7 
6       >  9*    8 *
"?   #7   3    "- "
                                 8      / .    8 * #7
   692   693   694   695   696   697   698   699   700   701   702