. , , . , . , , .
(. 12.15), , . . S aF.
. 12.15.
:
(12.22)
YS 0 - t 0; t ‑ , .
t 0=1 YS 0 . 12.5. .
. , . , . .
, , .
, ³ 1. , . . , , . , . , .
( ) P Y P , 0
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Y = 5 lg (P / P ). (12.23)
, D F . S,
P = S D F (12.24)
D F . , t D F . , P 0 , , . . t =1 ,
P = P0 (t 0 / t) 0.5 (12.25)
, , . . N , N () .
,
Y = 5 lg (P 0 / P ) + 2.5 lg (t 0/ t ) -2.5 lg (N). (12.26)
, (12.15) (12.26),
D= 5 lg (P 0 / P 0 ) + Ys 0 + 7.5 lg (t / t 0 ) + 2.5 lg (N) - a . (12.27)
. 12.16.
, .12.16. Ysm . , Y ( ). Yim .
.
, P m 3 P . Y 2.4 .
, . N T 0. Lm, , N, .
T = NT 0 = NLmn 1 / c. (12.28)
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, ( ). () . , , , . . , . M , M . . , .
M = 2 Lm / D L = 2 T 0 / t . (12.29)
, -. .