Patent ID: 11874371
Assignee: ZHEJIANG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The sparse optimization method based on cross-shaped three-dimensional imaging sonar array according to claim 1, wherein, the calculation formula of δmin and δmax is:, δ
      min
    
    =
    
      -
      
        
          2
          ⁢
          
            λ
            min
          
        
        
          D
          2
        
      
    
  
  ⁢
  
    

  
  ⁢
  
    
      δ
      max
    
    =
    
      
        2
        ⁢
        
          λ
          min
        
      
      
        D
        2
      
    
  

wherein, λmin is the wavelength corresponding to the highest frequency among all emitted sound waves; D is the array aperture.