3-3-6 
vehicle can be driven at any speed 
from lOkm/hr to 80km/hr without 
losing accuracy. 
• Minimum observation time required to 
achieve 20cm precision as a function of 
baselength was identified. 
Recommendations 
• The procedural has to be tested for 
roads in urban environment and 
different topography. 
• The applicability of this methodology 
has to be explored for applications like 
mobile mapping. 
• The accuracy has to be assessed for the 
horizontal component as well. 
6. References 
Cannon, M. E. and Lachapell, G. (1992) 
Analysis of a high performance C/A code 
GPS Receiver in Kinematic mode, 
NAVIGATION, Journal of the Institute of 
Navigation Vol. 39 No. 3, USA. 
Chong, A. K. and Dewhirst, K. (1996) 
Calling GPS : Long - Range Positioning 
via Cellular Technology, Technical Sketch. 
P50-53. 
Falkenberg, B., Ford, T., Neumann,J., 
Fenton, P., Cannon, M. E. and Lachapell, 
G. (1992) Precise Real Time Kinematic 
Differential GPS using a Cellular Radio 
Modem IEEE, PLANS, Canada. 
Geomatics Canada, Geodetic Survey 
Division, Accuracy Standards for 
Positioning 
Leick, A., (1995) GPS Satellite Surveying, 
Second Edition, A Wiley-Intemetional 
Publication, 1995. 
Seeber, G., 1993, Satellite Geodesy, 
Foundations. Methods and Applications, 
Berlin, Walter de Gruyter 
Wu, J. and Lin, S. G., (1995) Height 
Accuracy of one and half Centimeters By 
GPS Rapid Static Surveying, Int. J. 
Remote Sensing, Vol. 16, No. 15, 2863- 
2874.