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即 A-(21+1)i'e=(21+1je* (13) 将此结果代入(11)式 ∑(2I+Ie2AP,(cos0)=2if(0)+∑(21+1)P(cos0) 1= 1=0 fo=2k2(21+1e2s-(cas) 2(21+15(es-e)P(cos) 2k in (cos) (14)将此结果代入(11)式 (2 1) (cos ) 2 ( ) (2 1) (cos ) 0 2 0     l l l i l l e P ikf l P l    =  = + = + + (2 1)( 1) (cos ) 2 1 ( ) 2 1    l i l l e P ik f l =  + −  = (2 1) ( ) (cos ) 2 1 1     l i i i l l e e e P ik l l − l  = =  + − (2 1) sin (cos ) 1 0    l l i l l e P k l =  +   = (14) 三、分波法(续7) 即 ) 2 1 ( (2 1) (2 1) l l i l l i l A l i e l e    + = + = + (13)
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