supported by the National High Technology Research and Development of China (Grant No.2006AA12Z22);the National Natural Science Foundation of China (Grant No.40604003);the Foundation for Author of National Excellent Doctoral Dissertation of China (Grant No.2007B51);the China Postdoctoral Science Foundation (Grant No.20080430148,2009020444)
The truncation error and propagation error are analyzed for velocity determination through differential GPS carrier phase observations,and an approach for the choice of the best number of points for the central differ...