ЦСАУ

y*(t)

x(t) S1 x*(t)

X1(t) S2 x1*(t)

*(s)

W1(s)

W2(s)

(s)

1(s)

y(t)

*(s)

1*(s)

*1(s) =W*1(s)· *(s),

(3.18)

*(s) =W*2(s)· *1(s).

(3.19)

(3.18) (3.19)

z, :

(z) =W1(z)·W2(z)· (z).

(3.20)

W(z) = W1(z)·W2(z).

(3.21)

1

W1W2

(z) Z{W1 (s) W2

(s)}

W1 (s jn s ) W2 (s jn s )

.

T n

s

1

ln z

x(t)

x*(t)

y(t)

X(s)

X*(s)

Y(s)

W ( z )

( z )

W1 ( z )

.

( z )

1 W1 ( z ) W 2 ( z )

y*(t)

x(t)

*(s)

y(t)

W1(s)

(s)

(s)

W (s)

1 e Ts

.

(3.23)

0

s

e

Ts

1

W (s) Z

1

(1

z 1 )Z

1.

0

s

s

Y(z) = W1(z) X(z),

(3.24)

W1(z) = Z{W0(s) W(s)}.

(3.25)

(3.23) (3.25), :

Ts

W (s)

1

W (s)

W1 (z) Z (1

e

)

(1 z

) Z

.

s

s

X(z)

Y(z)

:

lim y(t) x(t) , :

T 0

lim Y (s) X (s).

T 0

x(t)

x*(t)

y(t)

lim Z{W0 (s) W (s)} W (s) .

(3.26)

T 0

lim Z{W0 (s) W (s)}

lim

n

1 e sT N ( k )

1

s

D ( k ) 1 e T (s k )

T 0

T 0 k 1

n N (

k

)

lim

Ts

1

n

Re sW (s)

s

k

.

s k

k 1 D ( k ) T 0 s T (s k )

k 1

r(t)

s 1

1

y(t)

s 2 2s 2s

s 2

s 1

1

Z W0

(s)

Z W0

(s)

s2

s

2

(z)

2s 2

,

s 1

1

1

1 Z W0

(s)

Z W0

(s)

s2

s

2s 2

2 s

(3.23), :

s 1

1

(1 z 1) Z

(1 z 1) Z

2s 2)

(z)

s(s2

s(s 2)

s 1

1

1

1

1

1 (1 z

) Z

(1 z

) Z

s(s

2 2s 2)

s

2 s2

s2

–

( . . 3.14,

)

s1

N . ,

s2

T

,

N – ,

N

. , s2

s1

.