Patent ID: 11910182
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. The method of claim 7, wherein the correlation coefficient for a channel combination is calculated as follows:, ρ
   [
   
    m
    ,
    n
   
   ]
  
  =
  
   
    ❘
    "\[LeftBracketingBar]"
   
   
    
     1
     
      
       (
       
        N
        -
        1
       
       )
      
       
     
    
    ·
    
     
      
       ∑
       
         
        i
       
      
      
       
        ∑
        
          
         j
        
       
       
        
         
          x
          m
         
         [
         
          i
          ,
          j
         
         ]
        
        ·
        
         
          
           x
           n
          
          [
          
           i
           ,
           j
          
          ]
         
         *
        
       
      
     
     
      
       ∑
       
         
        j
       
      
      
       
        σ
        ⁡
        (
        
         
          x
          m
         
         [
         j
         ]
        
        )
       
       ·
       
        σ
        ⁡
        (
        
         
          x
          n
         
         [
         j
         ]
        
        )
       
      
     
    
   
   
    ❘
    "\[RightBracketingBar]"
   
  
 

 where

 
  
   
    ρ
    [
    
     m
     ,
     n
    
    ]
   
   =
   
    correlation
    ⁢
       
    coefficient
   
  
  ,
 

 
  
   
    
     σ
     ⁡
     (
     
      
       x
       
        m
         
       
      
      [
      j
      ]
     
     )
    
    =
    
     standard
     ⁢
        
     deviation
     ⁢
        
     across
     ⁢
        
     one
     ⁢
        
     time
     ⁢
        
     slot
     ⁢
        
     j
     ⁢
        
     of
    
   
      
   

   

   

   

  
  ⁢
  

  
   
    channel
    ⁢
      
    m
   
   ,
  
 

 
  
   
    
     σ
     ⁡
     (
     
      
       x
       n
      
      [
      j
      ]
     
     )
    
     
    =
    
     standard
     ⁢
        
     deviation
     ⁢
        
     across
     ⁢
        
     one
     ⁢
        
     time
     ⁢
        
     slot
     ⁢
     
        
       
     
     ⁢
     j
     ⁢
        
     of
    
   
      
   

   

   

   

  
  ⁢
  

  
   
    channel
    ⁢
       
    n
   
   ,
  
 

 
  
   x
   m
  
  ,
  
   
    x
    n
   
   =
   
    zero
    -
    mean
    ⁢
       
    variables
   
  
  ,
 

 
  
   
    i
    ⁢
    
     ∀
     
      [
      
       1
       ,
       N
      
      ]
     
    
   
   =
   
    frequency
    ⁢
       
    bands
   
  
  ,
 

 
  
   
    j
    ⁢
    
     ∀
     
      [
      
       1
       ,
       M
      
      ]
     
    
   
   =
   
    time
    ⁢
       
    slots
   
  
  ,
 

 
  m
  ,
  
   
    n
    ⁢
    
     ∀
     
      [
      
       1
       ,
       K
      
      ]
     
    
   
   =
   channels
  
  ,
 

 
  *
   
  
   =
   
    complex
    ⁢
       
    
     conjugate
     .