7B-5-7 
5 ACKNOWLEDGEMENT 
The authors would like to express their gratitude 
to Mr Xiuxiao Yuan, Mr. Junli Wu, Mr. Jianhu 
Zhao and Mr. Wei Lan for their efforts on 
airborne GPS surveying Also to China National 
863 Hi-tech Projects (No. 863-308-13-04(2)) 
and Natural Science Foundation of China (No. 
49631050) for the support. 
6 REFERENCE 
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Hatch, R. and Euler, H. J., 1994 Comparison of 
Several AROF Kinematic Techniques, ION 
GPS-94, Salt Lake City. Utah, USA, pp363-370 
Liu, J. Y. and Chen, X. M., 1995. The 
Cpnfidence Evaluation on GPS Kinematic Data, 
IUGG XXI General Assembly, Boulder, 
Colorado, USA 
Wei, M. and Schwarz, K. P., 1995. Fast 
Ambiguity Resolution Using an Integer 
Nonlinear Programming Method, ION GPS- 95, 
California, USA