Pit e p2t C P-P P12=-a±j U e/@r e(people o) Jo c e- a(e/o-e o)-jo(e/o +e o )l 2 io Uoe -ar sino + cos a ti a os B c =Une - sin at+cos at) n阝 0 m ue(sin at+cos or) 03 0 β=arcg == Use u sin(ot+β)V=Ke"sin(ot+β)V( ) 2 ( ) 2 1 0 2 1 2 1 0 1 2 t j t j t p t p t C e P e P e j U P e P e P P U u −  −  − −  = − − = P12 = − j  0  [ ( ) ( )] 2 0 t j t j t j t j t e e e j e e j U −  −   −  − − −  + −  = ] 2 ( ) 2 ( ) [ 0 j t j t j t j t t e e j e e U e  −   −  − + + −   = ( sin cos ) 0 U e t t t  +    = − ( sin cos ) 0 0 0 0 U e t t t     +     = − U e t V Ke t V t t sin( ) sin( ) 0 0  +  =  +    = − − sint cos  t    = =    =    arctg sin cos 0 0