111.2.1. 㳿 GPS-
, GPS-. 糿 , , . (relative) .
㳿 GPS- : . , 㳿 , .
. GPS, , , . , -
( 翳)
, , , :
1. 㳿 (Static relative positioning).
2. ʳ 㳿 (Cinematic relative positioning).
3. (semi-cinematic relative positioning) ( "/" - technology: "stop and go").
4. , , - (pseudo-static, pseudo-cinematic relative positioning, intermittent static positioning, reoccupation).
5. (fast/rapid static relative positioning).
6. GPS-㳿 (differential GPS-DGPS).
, , . ³ . ( ) : - "/" - . "" . ̳ ( ) .
, , - '. . ' " ". 㳿 , () , . " " .
( 1-5 ) ' , . , , . "/" -. 㳿 , () , 㳿, () , .
|
|
㳿 .
III
III.2.2.
. 㳿 . ( ) [22].
, :
1. 30-90 .
2. 1-2 , , .
3. 4-6 . :
15-20 1 , EUREF (European Reference Frame), - 5 . , CERGOP (Central Europe Regional Geodynamics Project).
㳿 5 1 1 , . ϳ . , 100 , ^. , , . SKI.
. , : , . ' ' , . : ' , . ϳ ' , [23].
, , , DOP (Dilution of
( )
Precision - ).
0.
(.2.1)
GDOP - , , . ³
|
|
(.2.2)
, , mh - ; mt - ; - . , GDOP "'". GDOP (< 8) . GDOP , "'" . GDOP, . GDOP, , , - . GDOP . ֳ . . GDOP PDOP -, , , HDOP - , ; VDOP- .
GDOP , ' . "" "" GDOP < 8 , 15 ( ).
, , . . , . .
ϳ , , SR-9500 ( Leica); SNR-8000 SNR-8100 ( Alen Osborne); Z-XII ( Ashtech); 4000 SSI ( Trimble).
111
111.2.3. ,
̳ , . , , : , , , . . "" Static Survey. GPS- " ". ϳ " " (5-8) GDOP (1-4).
, GPS, .
: Static ().
: Compacted ().
: 15, , 60 .
/ : AUTO ()
:
;
;
(GDOP);
.
. .2.1. ().
III. 2.1