Patent ID: 11899149
Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 3:
4. The method for automatically identifying an active source azimuth of a planet seismometer according to claim 3, wherein a calculation formula for the target function A is:, A
  =
  
   
    
     At
     ⁢
     1
    
    
     Ar
     ⁢
     1
    
   
   +
   
    
     At
     ⁢
     2
    
    
     Ar
     ⁢
     2
    
   
   +
   
    
     At
     ⁢
     3
    
    
     Ar
     ⁢
     3
    
   
   +
   …
   +
   
    AtN
    ArN
   
  
 

wherein i=1, 2, . . . N, N represents the number of the lander support legs;
a calculation formula for the azimuth φ of the planet seismometer is:

φ=θci−θai 

wherein i=1, 2, . . . N, N represents the number of the lander support legs; the earthquake source incident azimuth θai is an included angle between a direction of the i-th lander support leg and a North direction of the planet seismometer; θci represents an azimuth of a ground contact point of the i-th lander support leg.