Метрология, стандартизация и сертификация. Акмайкин Д.А. - 20 стр.

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) !!&) (&) ,+!):
>
=
0
0
(! 1
(! 0
)(
tt
tt
tx
+!)   *! g(t), (!*! x(t) *(*-
!" τ
(!) ), #!' #'!" ! *(* !" τ
(!) b).
') "(#$) ,+!) (2 ,+!) !)  0 (! t t
0
!  (! t=t
0
( (#0$ ,+!!  1, . .
12dt =
):
=
=
0
0
(!
(! 0
)(
tt
tt
tx
.
+!)   *!,+!) h(t).
) !!*").0)  "! *! ("()
,+!)):
>
=
0
0
(!
(! 0
)(
ttAt
tt
tx
.
        )        ! !& )          (           &    ),      +!):
                  0 ( ! t ≤ t0
       x(t ) =
                  1 ( ! t > t0




              +!)                        *         ! – g(t),       ( !*       ! x(t) * ( * -
     ! " τ ( ! ) ), #!'                          # ' ! " ! *( *           ! " τ ( ! ) b).
       ')     "( #$         ),               +!) (2 – ,     +!) !         )       0 ( ! t ≠ t0
                                                                                  ∞

!           ∞ ( ! t=t0 (                     (# 0 $ ,        +!!      1, . .          2dt = 1 ):
                                                                                 −∞

                  0 ( ! t ≠ t0
       x (t ) =                      .
                  ∞ ( ! t = t0




      +!)                  *    ! −,                   +!) h(t).
        ) !              −!*" ).0 )                        " !       *          ! ( "(             )
,     +!)):
                  0 ( ! t ≤ t0
       x(t ) =                           .
                   At ( ! t > t 0

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