a0Y(n)(t)+a1Y(n-1)(t)+... +anY(t)=b0X(m)(t)+... +bmX(t) (8)
X(t) - , Y(t) - , ao, a1... an, bo... bm - . (8), :
(aoPn+a1Pn-1+... +an)Y(P)=(boPm+b1Pm-1+... +bm)X(P) (9)
- Y(t) X(t).
Y(P)/X(P)=K(P) . (9) ,
(10)
=jw , :
(11)
, X(t), X(t)=0 t<0, X(t)<Mea t t>0, a - ,
, , jw, . (11) :
Y(jw)=K(jw)X(jw)
, , 2 ¥:
:
Sy(w)=Sx(w)½K(jw)½2. (12)
K(P) S(w) X(t), , (12) .
(13)
(13) :
(jw) (jw) jw. 2 n. 2 n -2. (13) :
In n .
my (t) K(P) m (t) :
my=K(0)mx, K(0)=K(P) =0.
1. .., .. . - .: , 1972.- 767 .; .
2. .. . - .: , 1960 .;.
[. . .1]