. : . x(t) φ , . , . (8.2)
M=∆φmax=aX (8.4)
. . , AM . (8.4), (8.2) . (8.5)
. (8.6)
, , ω0 , . ω ω0 ∆ω= MΩ ∆f =MF (8.7)
x(t) : ω=ω0+ ax(t) (8.8), . :
.
, . : . , . , (8.10) (8.5): . (8.11)
. (8.11) , . , ( ∆f), : (8.7) (8.10).
. : . (8.12)
(<0,5 ) (M>0,5). . M << l, , (8.13)
. (8.14)
, AM . ω0 ω0+Ω ω0−Ω. , , . , AM: . , AM , (. . 180) . AM 180.
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M >> 1 (8.13) (8.14) . (8.12). , . , . , , , , - ω0 ω0nΩ An=U0Jn(M). =4 . 1.10.
, , , . ( Jn(M)=0). A0=U0J0(M), = 2,4; 5,6...
, . Jn(M), <, , . 1.10. () . : , - .
2∆f , :
1) ∆f, =∞;
2) <<1 ∆f, =2F>>2 ∆f , M>>1 ∆f, 2∆f .