“Supporting Linear Least Square Filter by Adding New Mathematical Conditions for Solving Ambiguity in Precise Point Positioning and Comparative Study Versus Kalman Filter”. Latakia University Journal -Engineering Sciences Series 43, no. 1 (March 10, 2021). Accessed October 13, 2026. https://journal.latakia-univ.edu.sy/index.php/engscnc/article/view/10342.