Patent ID: 11936468
Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The position-based multiple access communication method according to claim 7, wherein in the step S5, the I/Q domain matching operation is as follows:, x
      ~
     
     ^
    
    (
    t
    )
   
   =
   
    [
    
     
      
       
        
         
          x
          ~
         
         1
        
        (
        t
        )
       
      
     
     
      
       
        
         
          x
          ~
         
         2
        
        (
        t
        )
       
      
     
     
      
       ⋮
      
     
     
      
       
        
         
          x
          ~
         
         M
        
        (
        t
        )
       
      
     
    
    ]
   
  
  ⁢
  

  
   
    
     
      s
      ^
     
     0
    
    (
    
     u
     ,
     t
    
    )
   
   =
   
    
     ∑
     
      i
      =
      1
     
     M
    
    
     
      
       α
       i
       *
      
      (
      
       u
       ,
       t
      
      )
     
     ⁢
     
      
       
        
         x
         ~
        
        ^
       
       i
      
      (
      t
      )
     
    
   
  
 

wherein αi*(u, t) represents an ith dimension of a uth matched signal, {tilde over ({circumflex over (x)})}(t) represents the high-dimensional total receiving signal, and {tilde over ({circumflex over (x)})}(t) represents an ith dimension of the high-dimensional total receiving signal;
the uth matched signal is as follows:, α
     *
    
    (
    
     u
     ,
     t
    
    )
   
   =
   
    [
    
     
      
       
        
         α
         1
         *
        
        (
        
         u
         ,
         t
        
        )
       
      
     
     
      
       
        
         α
         2
         *
        
        (
        
         u
         ,
         t
        
        )
       
      
     
     
      
       ⋮
      
     
     
      
       
        
         α
         M
         *
        
        (
        
         u
         ,
         t
        
        )
       
      
     
    
    ]
   
  
  ,
 

 and
the ith dimension of the uth matched signal is as follows:, α
    i
    *
   
   (
   
    u
    ,
    t
   
   )
  
  =
  
   
    ∏
    
     m
     =
     1
    
    L
   
   
    
     exp
     ⁡
     (
     
      j
      ⁢
      2
      ⁢
      
       π
       ⁡
       (
       
        
         k
         m
        
        -
        1
       
       )
      
      ⁢
      Δ
      ⁢
      
       f
       m
      
      ⁢
      t
     
     )
    
    .