Effect of Error in Unit Vector on DGPS Positioning AccuracyJan 1, 1997·Changdon Kee,Parkinson,B. W.· 0 min readLast updated on Jan 1, 1997 AuthorsChangdon KeeProfessor Emeritus← Comparison of Master Station User Algorithms for Wide-Area Augmentation System Jan 1, 1997Wide Area Differential GPS Nov 1, 1996 →