Patent ID: 11906335
Assignee: ENDRESS+HAUSER FLOWTEC AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. The method of claim 15, wherein the digital adaptive filter comprises a digital transversal filter having a second z-transfer function defined as:, G
        LPE
        *
      
      ⁡
      
        (
        z
        )
      
    
    =
    
      
        Z
        ⁡
        
          (
          
            g
            ⁡
            
              [
              m
              ]
            
          
          )
        
      
      =
      
        
          ∑
          
            k
            =
            1
          
          M
        
        ⁢
        
          w
          ⁢
          
            
          
          ⁢
          
            
              1
              k
            
            ·
            
              z
              
                -
                k
              
            
          
          ⁢
          
            
          
          ⁢
          or
        
      
    
  

  
    
      
        
          G
          
            L
            ⁢
            P
            ⁢
            E
          
          *
        
        ⁡
        
          (
          z
          )
        
      
      =
      
        
          Z
          ⁡
          
            (
            
              g
              ⁡
              
                [
                m
                ]
              
            
            )
          
        
        =
        
          
            
              ∑
              
                k
                =
                1
              
              M
            
            ⁢
            
              w
              ⁢
              
                
              
              ⁢
              
                
                  1
                  k
                
                ·
                
                  z
                  
                    -
                    k
                  
                
              
            
          
          =
          
            
              ∑
              
                k
                =
                1
              
              M
            
            ⁢
            
              w
              ⁢
              
                
              
              ⁢
              
                
                  1
                  k
                
                ·
                
                  e
                  
                    
                      -
                      j
                    
                    ⁢
                    
                      
                    
                    ⁢
                    ω
                    ⁢
                    
                      
                    
                    ⁢
                    
                      T
                      
                        s
                        ⁢
                        
                          
                        
                        ⁢
                        1
                      
                    
                  
                
              
            
          
        
      
    
    ,
  

wherein M is the number of transversal filter coefficients, w1k.