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1. Satellite Navigation

   Linked via "DOP"

   $$R = c \cdot t$$
   For accurate positioning, at least four satellites are required. Three satellites are needed to solve for the three spatial dimensions ($x, y, z$), while the fourth is necessary to resolve the receiver clock bias ($\Delta t_r$), which is typically far less stable than the atomic clocks aboard the satellites $\text{^ [1]}$. The geometric arrangement of the satellites relative to the receiver is described by the Dilution of Precision (DOP) factors. Low DOP values (ideally $<…