Patent ID: 11892577
Assignee: INSTITUTE OF ROCK AND SOIL MECHANICS, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. The method of claim 12, wherein the preset cross-correlation objective function is:, E
  =
  
   
    ∑
    
     s
     ,
     r
    
   
   
    
     ∫
     0
     T
    
    
     
      [
      
       
        -
        
         
          u
          ⁡
          (
          
           
            x
            s
           
           ,
           
            x
            r
           
           ,
           t
          
          )
         
         
          
           ❘
           "\[LeftBracketingBar]"
          
          
           u
           ⁡
           (
           
            
             x
             s
            
            ,
            
             x
             r
            
            ,
            t
           
           )
          
          
           ❘
           "\[RightBracketingBar]"
          
         
        
       
       ·
       
        
         
          u
          0
         
         (
         
          
           x
           s
          
          ,
          
           x
           r
          
          ,
          t
         
         )
        
        
         
          ❘
          "\[LeftBracketingBar]"
         
         
          
           u
           0
          
          (
          
           
            x
            s
           
           ,
           
            x
            r
           
           ,
           t
          
          )
         
         
          ❘
          "\[RightBracketingBar]"
         
        
       
      
      ]
     
     ⁢
     dt
    
   
  
 

wherein, u(xs, xr, t) represents a simulated acoustic wave signal; and u0(xs, xr, t) represents the low-frequency acoustic wave data or the high-frequency acoustic wave data.