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3.2.

  

3.

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3.2.

(AM), () (). AM () () .

. u(t) , u(t):

s(t)=Au(t), (3.3)

. (3.1), f(t)=A [u(t)]=u(t). .

. : f(t)=,

.

(3.4)

AM

s(t):

,

(3.5)

. , AM (. 3.16). F AM Fm:

,

u(t)=,

(3.6)

, ,

. AM :

m=l Pcp=1,5PH; 0,375. " .

(). AM AM . :

f(t)=, (3.7)

(3.8)

(3.9)

.

() . :

f(t)=, (3.10)

(3.11)

(3.12)

, u(t) (t) :

, cosx; sinx 頠 ,

>0. [u(t)] *[u(t)]=u(t)-i(t) s(t), .

, . .

. ( )

(3.13)

f(t)= :

(3.1 4)

(3.15)

. (3.15) :

(3.16)

, . .

(3.17)

, ω(t) (3.17) ψ(t) ω(t):

(3.18)

. (3.15) (3.16) :

(.19) (3.20)

(3.21)

( ). :

(3.22)

(3.23)

, (t)=cosΩt, :

(3.24)

:

(3.24)

(3.25)

=0. :

(3.26)

(3.27)

k-o . (3.26) (3.27) (3.25)

(3.28)

, , . ω0 . 010() . AM, . ( =2,3; 5,4). . .

. 3.2.

. 3.2 m=5. , k. k>m . F=2(m+l)Fm, F= .

Ω. =, m>>1 Fm. b

m>>1 F=2ΔφfmFm . . Fm. .

, AM, :

(3.29)

(3.28), , m<<l sin (msinΩt)msinΩt, cos (msinΩt)1.

(3.6) (3.29) , AM 180 AM. , . 3.3.

. 3.3. : AM (), (<1) ()

. :

(3.30)

. , :

(3.31)

(3.30) . . u(t)=sinΩt. φ(t) :

.

,

, . (, ) . .


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