Документ взят из кэша поисковой машины. Адрес оригинального документа : http://lnfm1.sai.msu.ru/grav/russian/life/chteniya/sagit2008/Tatevyan.pdf Дата изменения: Thu Feb 7 16:04:20 2008 Дата индексирования: Mon Oct 1 23:42:23 2012 Кодировка:

Z
«C » 4-5 2008

Y
... ..


X


(TRS) ­ , ( ). , , . IERS . : - , ­ .


() TRF - TRS. ITRS ITRF. TRF . TRS 1 TRS 2

X

( 2)

= T1, 2 + 1, 2 R1, 2 X

(1)


IERS, ITRF2000 ITRF2005


Transformation parameters at epoch 2000.0 and their rates from ITRF2005 to ITRF2000 (ITRF2000 minus ITRF2005) T T T D 10
-9

1

2

3

R

1

R

2

R

3

mm 0.1 ± Rates ± 0.3 -0.2 0.3

mm - 0.8 0.3 0.1 0.3

mm - 5.8 0.3 -1.8 0.3

mas 0.000 0.012

mas 0.000 0.012

mas 0.000 0.012

0.40 0.05 0.08 0.05

0.000 0.000 0.000 0.012 0.012 0.012


(ITRF )



20 40 2 10 ­9 12 ( ) 3-5 4- 20 3-8 25-30 1 / 1-3 / 10 /

x, y z

: (c...)



: (c...)



. . GPS ..,GPS


( 5 ) 1962-2005 (X,Y ­ , UT1- ) - 1962-1967 1968-1971 1972-1979 1980-1983 1984-1989 1990-2000 2001-2005

(X)
0.001" 30 25 11 2 .40 .20 .15

(Y)
0.001" 30 25 11 2 .40 .20 .15

(UT1)
0.0001s 20 17 10 3 .20 .20 .1

()
0.001" 2 .5 .3 .3

()
0.001" 1 .2 .1 .1







X ., DORIS () GPS () SLR () 1993.0 ­ 2005.5 1993.0 ­ 2005.7 1993.0 ­ 2000.2 5.5 ± 0.3 3.0 ± 0.1 3.1 ± 0.5 ., 2.0 ± 0.4 14.1 ± 0.2 1.1 ± 0.5 ., 4.3 ± 0.3 5.0 ± 0.1 5.5 ± 0.5 Y ., 1.9 ± 0.5 3.3 ± 0.3 0.8 ± 0.5 ., 23.7 ± 1.2 13.2 ± 0.4 3.6 ± 0.5 Z ., 11.0 ± 1.6 6.0 ± 0.4 1.4 ± 0.6

Dong et al. [1997] Chen et al. [1999] Bouille et al. [2000] 1.6 4.2 2.4 0.83 0.75 3.2 2.0 1.8 0.43 0.89 3.5 4.1 3.1 1.1 0.5


·

, t

X m ( t ) = X 0 + V0 ( t - t 0 ) + dX i ( t )
· Xo Vo ITRF , dXi(t) , , , . , , 1 . .

·


ITRF ICRF . , , :

ICRF = Q R W [TRF + O( t )],
· · Q ­ -, R ­ , W- , O(t) ­ TRF(t) ITRF, .. . , ITRF, TRF(t) . , .

·


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