International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004 
  
The graph of the figure n. 7 shows the differences among the 
values of known coordinates and the GPS-Leica SR530 survey PEGA 
data. 
  
COMPARISON RTK/! STATIC 
  
— Im M 
— 0 =DE [m 
- -0- - Dh [m 
  
  
  
        
      
  
  
     
    
     
        
        
  
     
   
      
            
  
  
     
   
     
       
       
     
  
    
    
    
       
     
  
  
  
4 
sero Pncouo A KEY WC 
ver | ese | 0.020 | 0.000 
vase [ases | noses | ese ABSTRA 
Fig 7 Comparison between DGPS-RTK data gotten with Leica The PEG 
SR530 and known coordinates. project s 
atmosphe 
continuot 
The analysis of the gotten data encourage the development of The pape 
the experimental tests both to verify the constancy (linearity) of weight cc 
the accuracy at the increasing of distances and to evaluate the many ren 
altimetric problems. ; 
The results obtained by this experimentation will be very useful RESUM 
to verify the real accuracy of TIM GeoData System, to 
develope the use of a GPS “low-cost” receiver for GIS data Le proje 
collection with sub-meter accuracy and for certification of the Sensors) 
results accuracy by a competent institution, in sight of standards thermiqu 
for the verification of the measuraments through GPS. inhabité « 
Ce docur 
REFERENCES son bord 
instrumei 
Surace L.: "The new national geodetic IGM95 network: results considér: 
and use perspectives "- Boll. GG.SS.AA. n.3, 97 
M. Caprioli: "Importance and role of the GPS permanent 
national network for topographic and professional application". 
- ASI-CGS, Matera, 1997 
M. Gatti, F. Negroni: “Experimental test for territorial and Remote : 
geo-topographical survey with TIM GPS network”- Geomedia, spacebor 
2003. disadvan 
G. Lachapelle,A. Pugliano "Posizionamento GPS Network 
RTK: il metodo Multiref", Bollettino SIFET n.3, 2002. Spacebo 
"GPS System 500 - Technical reference Manual”, Leyca global c 
Geosystem. coverage 
http://www.business.tim.it (accessed April 04). resolutio 
M. Caprioli, A. Scognamiglio, G. Strisciuglio, "Experimental (IKONC 
test of GPS-RTK measurements with GPS-GSM network by than th: 
TIM. (Telecom Italia Mobile)", ISPRS — WG VI/3 meeting, mechani 
Geo-Information for practice, Zagreb, Croatia, 15-18 October earth at 
2003. may tak 
Airborni 
and are 
The authors thank the eng. A. CABRUCCI, Managing Director expensi 
of Leica Geosystem s.p.a. Italia, for the courtesy and limited 
availability. of the 
vibratioi 
planned 
As an a 
use an ı 
the stra 
energy : 
* 
Corres