8/20/2019 SAR Image synthesis with Chirp Scaling Algorithm of 3D CAD Model using EM Simulator

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( )φ θ θ            θ   ( )φ θ φ            φ  

 

( )   ( )=

+−

=

⋅− =≈  

    

  

 

         

  θ θ σ σ θ      

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8/20/2019 SAR Image synthesis with Chirp Scaling Algorithm of 3D CAD Model using EM Simulator

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σ  

      +=  

( )       

            +=         π =  

( )

( ) ( )[ ]θ δ σ               

    

 

 

  

−

=

≈−−=  

( )      

( )θ         

 

( )

( )

( )

=

==

 

 

 

  −+−⋅=

  

   −⋅=−⋅=

  

  

  

   

 

   

   

σ 

σ σ   

( )      η    =  

   

     

  

   

     ( )η τ     

( )

( ) ( )

( )( )

 

 

 

  

  

 −+−⋅

−⋅ 

  

 −⋅=

η τ π η 

π 

η η η τ 

η τ 

 

   

    

 

 

  

 

   

    τ  

η   η  

( )τ    

( )η    ( )η    

( )  

  η η         +=  

   

( )  ( )

( )  ( )

′

−=′  

  τ π τ η 

η 

η 

 

  

 

 

      

                

( )  

 

     

 

η 

τ τ   −=′  

   

( )  

        

    

    

  

 

 

η 

η −

=  

)       η   

( )

   

       

 

 

η 

η    −=  

( ) ( ) ( )η η η    τ τ τ                    ′=  

2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar(APSAR)   73

8/20/2019 SAR Image synthesis with Chirp Scaling Algorithm of 3D CAD Model using EM Simulator

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( )( )[ ]

( )  ( )

( )

( )

( )( )

( ) ( )

−

−⋅

−⋅

−⋅

−

 

 

 

 

⋅−=

=

 

 

 

 

 

 

 

 

 

     

 

     

 

     

     

   

      

  

         

          

   

        

    

  

 

  

  

η η 

η 

η 

τ 

η 

η 

η η 

η 

η τ τ 

η 

π 

π 

π 

τ 

τ 

 

   

( )( )

( ) ( ){ }η τ θ η η 

τ η τ η 

   

     

     

 

 

  

⋅−

 

 

 

 

⋅−=

 

    ( )η    

( )η       ( )η τ θ     

    

  

  

θ  φ

 

( )θ θ          

    θ  

74   2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar(APSAR)

8/20/2019 SAR Image synthesis with Chirp Scaling Algorithm of 3D CAD Model using EM Simulator

http://slidepdf.com/reader/full/sar-image-synthesis-with-chirp-scaling-algorithm-of-3d-cad-model-using-em-simulator 4/4

   

 

  

 

 

 

 

 

 

 

 

 

 

     

 

 

 

2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar(APSAR)   75