. , , ,

,,,

—


- .


1.

, , . , , , , .

:

W(j) , , . =0, .

Y(t) : Y(t) Y(t):

Y(t) = Y(t) + Y(t).

(1.1), (t)=0, (1.1), (t). , . , , , . :

( ) . :

:

(1.2)

ω :

(1.3)

ω, ( ).

2

2.1

, 2.1 T2.

2.1

(ω) φ(ω), , 2.2.

2.2. (ω)φ(ω)

= 14 , = 15 , .

, 2.3, .

2.3

:

MatLab, : , , , , , .

:

>> m=[0.93333]

m = 0.9333

>> n=[1.3225 1.15 1]

n = 1.3225 1.1500 1.0000

>> tf (m, n)

Transfer function:

0.9333

1.323 s^2 + 1.15 s + 1

>> [h, w]=freqs (m, n, 600);

>> ampl=abs(h);

>> phi=angle(h);

>> phi=unwrap(phi);

>> plot (w, phi, 'k'); grid on

>> plot (w, ampl, 'k'); grid on

>> vchhar=ampl.*cos(phi);

>> plot (w, vchhar, 'k'); grid on

>> mchhar=ampl.*sin(phi);

>> plot (w, mchhar, 'k'); grid on

>> plot (vchhar, mchhar, 'k'); grid on

2.4.

2.4

2.5.

2.5 -

2.6.

2.6

2.7.

2.7

2.8.

2.8

2.9.

2.9

2.9

 

 

 

! , , , .
. , :