Patent ID: 11960030
Assignee: HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 4:
5. The device for real-time measuring the spectrum of airborne hyperspectral imaging LiDAR according to claim 4, wherein the step S2 is as follows:
S21. formula (2) is divided by formula (4) to obtain:, P
              Ref
            
            ⁡
            
              (
              λ
              )
            
          
          
            
              P
              Cor
            
            ⁡
            
              (
              λ
              )
            
          
        
        =
        
          
            
              R
              ⁡
              
                (
                λ
                )
              
            
            
              Q
              ⁡
              
                (
                λ
                )
              
            
          
          =
          
            
              
                I
                Ref
              
              ⁡
              
                (
                λ
                )
              
            
            
              
                I
                Cor
              
              ⁡
              
                (
                λ
                )
              
            
          
        
      
    
    
      
        (
        5
        )
      
    
  

and the optical efficiency R (λ) of the reference light (13) during introduction is obtained;
S22. the power intensity C (λ) from the power spectrum of the reference light (13) is obtained by substituting into formula (2):, C
          ⁡
          
            (
            λ
            )
          
        
        =
        
          
            
              ρ
              0
            
            ⁢
            
              η
              ⁡
              
                (
                λ
                )
              
            
            ⁢
            
              Δλɛ
              ⁡
              
                (
                λ
                )
              
            
          
          =
          
            
              
                I
                Ref
              
              ⁡
              
                (
                λ
                )
              
            
            
              
                R
                ⁡
                
                  (
                  λ
                  )
                
              
              ⁢
              R
            
          
        
      
    
    
      
        (
        6
        ), based on formula (6), the laser spectrum of each pulse emitted by the laser (1) into the corresponding channel according to the reference light can be used to obtain the power intensity of the light pulse energy emitted by the laser (1) into the detector in the radar system.