́ , . ". ." ( ) , - (). , , , . ., . , .
, uc = UΩ cos Ωt (. 4.1 ), UΩ , a Ω . , , un=Uω0 cos ω0t, ω0 , Uω0 , . 4.1 .
, :
u= Ucosω0t (4.1)
U = Uω0 +kuc = Uω0 + kUΩcosΩt= Uω0(1+mcosΩt) (4.2)
, m=kUΩ /Uω0 (Umax Umin)/(Umax + Umin) , ( ).
, 100%. - . 4.1 . (4.1) (4.2),
u= Uω0(1+mcosΩt)cosω0t (4.3)
,
cosΩtcosω0t=1/2[cos(ω0+Ω)t+cos(ω0-Ω)t],
u= Uω0cosω0t+mUω0cos(ω0+Ω)t/2+ mUω0cos(ω0-Ω)t/2 (4.4)
(4.4) , , , Uω0cosω0t , Ω. , , (4.4), .
(4.4) , (m/2)Uω0 (ω0+Ω), . (4.4) , , (ω0-Ω), .
. 4.2 , - , , 2Fq ( ) , ω0. , .
, - , : () ().
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- . ( ) . . 15.1.8 - ( ). : 30 , 3 , =1.
. 15.1.8. , , 2wo . ( 4/5) . =1 , =0 ( ) . 2-, 3- (.. 4woW, 6woW, ..), . 2%, . , ( ). , . . .