λ3 = 1/T =
:
(t)c =
(t)c = = λ1+ λ2+ λ3=
λi .
, :
T. =
T. = =
, .
P(t)= e Λt
t , ; .
: 0, 24, 720, 2172, 8760 .
t P(t).
P(t)
1
t
:
;
;
.
T T, ( ).
, .
:
=
Tcp ; T .
=
, , .
K = 1 .
5.
5.
, 1/ | , | P(t) | ||||||
t = 24 | t = 720 | t = 2172 | t = 8760 | |||||
.
:
350 ;
0,99.
1. .. ,: , , 2001.
2. .. : - -: . / .. , .. , .. -. 2- ., . .: , 2007.
3. .. , : , , 2012.
4. .. / .. , .. . .: -, 2008
1.
() ()
Pout Ga
Tx |
Pin
( ) |
|
|
Ga
Rx |
T x Rx |
Lf
P out AC P in AC
:
G ; L ; L p ; ; D ; F ; ; ; Rx ; Pin ; Pout ; (Tower Mounted Amplifier) .
2.
( )
, % | ||||||
0,1 | 0,5 | 1.0 | ||||
() | ||||||
1. | 0,0010 | 0,0050 | 0,0101 | 0,0204 | 0,0526 | 0,1111 |
2. | 0,0458 | 0,1054 | 0,1526 | 0,2235 | 0,3813 | 0,5954 |
3. | 0,1938 | 0,3490 | 0,4555 | 0,6022 | 0,8994 | 1,271 |
4. | 0,4393 | 0,7012 | 0,8694 | 1,092 | 1,525 | 2,045 |
5. | 0,7621 | 1,132 | 1,361 | 1,657 | 2,219 | 2,881 |
6. | 1,146 | 1,622 | 1,909 | 2,276 | 2,960 | 3,758 |
7. | 1,579 | 2,158 | 2,501 | 2,935 | 3,738 | 2,666 |
8. | 2,051 | 2,730 | 3,128 | 3,627 | 2,543 | 5,597 |
9. | 2,558 | 3,333 | 3,783 | 2,345 | 5,370 | 6,546 |
10. | 3,092 | 3,961 | 2,461 | 5,084 | 6,216 | 7,511 |
11. | 3,651 | 2,610 | 5,160 | 5,842 | 7,076 | 8,487 |
12. | 2,231 | 5,279 | 5,876 | 6,615 | 7,950 | 9,474 |
13. | 2,831 | 5,964 | 6,607 | 7,402 | 8,835 | 10,47 |
14. | 5,446 | 6,663 | 7,352 | 8,2 | 9,730 | 11,47 |
15. | 6,077 | 7,376 | 8,108 | 9,010 | 10,63 | 12,48 |
16. | 6,722 | 8,100 | 8,875 | 9,828 | 11,54 | 13,50 |
17. | 7,378 | 8,834 | 9,652 | 10,66 | 12,46 | 14,52 |
18. | 8,046 | 9,578 | 10,44 | 11,49 | 13,39 | 15,55 |
19. | 8,724 | 10,33 | 11,23 | 12,33 | 14,32 | 16,58 |
20. | 9,412 | 11,09 | 12,03 | 13,18 | 15,25 | 17,61 |
21. | 10,11 | 11,86 | 12,84 | 14,04 | 16,19 | 18,65 |
22. | 10,81 | 12,64 | 13,65 | 14,90 | 17,13 | 19,69 |
23. | 11,52 | 13,42 | 12,47 | 15,76 | 18,08 | 20,74 |
24. | 12,24 | 14,20 | 15,30 | 16,63 | 19,03 | 21,78 |
25. | 12,97 | 15,00 | 16,13 | 17,51 | 19,99 | 22,83 |
26. | 13,70 | 15,80 | 16,96 | 18,38 | 20,94 | 23,89 |
27. | 12,44 | 16,60 | 17,80 | 19,27 | 21,90 | 24,94 |
28. | 15,18 | 17,41 | 18,64 | 20,15 | 22,87 | 26,00 |
29. | 15,93 | 18,22 | 19,49 | 21,04 | 23,83 | 27,05 |
30. | 16,68 | 19,03 | 20,34 | 21,93 | 24,80 | 28,11 |
31. | 17,44 | 19,85 | 21,19 | 22,83 | 25,77 | 29,17 |
32. | 18,21 | 20,68 | 22,05 | 23,73 | 26,75 | 30,24 |
33. | 18,97 | 21,51 | 22,91 | 24,63 | 27,72 | 31,30 |
34. | 19,74 | 22,34 | 23,77 | 25,53 | 28,70 | 32,37 |
35. | 20,52 | 23,17 | 24,64 | 26,44 | 29,68 | 33,43 |
36. | 21,30 | 24,01 | 25,51 | 27,34 | 30,66 | 32,50 |
37. | 22,08 | 24,85 | 26,38 | 28,25 | 31,64 | 35,57 |
38. | 22,86 | 25,69 | 27,25 | 29,17 | 32,62 | 36,64 |
39. | 23,65 | 26,53 | 28,13 | 30,08 | 33,61 | 37,72 |
40. | 24,44 | 27,38 | 29,01 | 31,00 | 34,60 | 38,79 |
3.
:GSM
GSM:
MS (Mobile Station) ;
BSS (BSC+TCE+BTS);
BTS (Base Station) ;
BSC (Base Station Controller) ;
TCE ;
SSS (Switching SubSystem) ;
MSC (Mobile Switching Center) ;
|
|
HLP (Home Location Register) ( );
VLR (Vision Location Register) ;
AUC (Authentication Center) ;
EIR (Equipment Identity Register) ;
OMC (Operations and Maintenance Center) .