1.
. . .
: , : , , , . .
.
. - , . . , , . f, =1/f. , , l, ..
l= / f.
, = 3*108 /; f=3*103 , l= 105 . f=3*109 = 3 l= 10 .
, , 104 1012 .
; . , .
() | 3-30 | 100-10 | ||
() | 30-300 | 10-1 | ||
() | 0,3-3 | 1000-100 | ||
() | 3-30 | 100-10 | ||
() | 30-300 | 10-1 | ||
() | 0,3-3 | 1-0,1 | ||
() | 3-30 | 100-10 | ||
() | 30-300 | 10-1 | ||
() | 0,3-3 | 1-0,1 | ||
() | 3-300 | 10-1 | ||
() | 30-300 | 10-1 | ||
() | 300-30000 (0,3-3 ) | 1-0,1 |
.
. 3 : , , ∆F .
|
|
- .
(D) .
D =10lg ( ⁄ ). .
.
∆F ∆F = F ─ F . 300 3400, .. 3,1, , 50 10000, . 6,5. . 100, 200, 400, -1200, 2400, 4800 9600, 96 192 , 2 1 ⁄ .
, D, ∆F V c = ∙ D ∙ ∆F = ∙ D ∙ 10lg ( ⁄ )
, . , D, ∆F. .
. . : , D, ∆F. V ≥ V c.
:
1. : , , .
2. .
3. ?
4. .
5. .
1. .
[1, . 10-22].
1. , 50.
.. | .. | .. |
қ | The information | |
The message | ||
қ | Wave | |
қ | Dynamic range | |
Spectrum of a signal | ||
ү | System |
2