Patent ID: 11943735
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 5:
6. The method of claim 5, wherein batching the features of each convoluted indoor CSI data comprises:
calculating a mean based on the convoluted indoor CSI data:, U
       B
      
      =
      
       
        1
        M
       
       ⁢
       
        
         ∑
          
        
        
         q
         =
         1
        
        M
       
       ⁢
       
        s
        q
       
      
     
     ;
    
   
   
    
     (
     4
     )
    
   
  
 

where UB represents the mean of the features of the convoluted indoor CSI data, M is a number of features of each convoluted indoor CSI data, sq represents the features of a qth convoluted indoor CSI data, q=1, . . . , M;
calculating a variance of the features based on UB by following formula;, σ
       B
       2
      
      =
      
       
        1
        M
       
       ⁢
       
        
         ∑
          
        
        
         q
         =
         1
        
        M
       
       ⁢
       
        
         (
         
          
           s
           q
          
          -
          
           U
           B
          
         
         )
        
        2
       
      
     
     ;
    
   
   
    
     (
     5
     )
    
   
  
 

where σB2 represents the variance of the features of the convoluted indoor CSI data;
standardizing the features of the convoluted indoor CSI data based on UB and σB2:, =
      
       
        
         s
         q
        
        -
        
         U
         B
        
       
       
        
         
          σ
          B
          2
         
         +
         ε
        
       
      
     
     ;
    
   
   
    
     (
     6
     )
    
   
  
 

where  represents standardized features of the convoluted indoor CSI data, and ε is a default standardized value.