. 2016 Feb 4;16(2):193. doi: 10.3390/s16020193

Table 2.

Nomenclature.

$d (G N S S, l i n k k)$	Distance between the GNSS point and link k
$\propto_{k}$	Angle between the GNSS trajectory and the link k trajectory
$β_{k}$	Denotes link k priority
$n_{s}$	Number of candidate links contained in segment s
$K_{d}, K_{d 2,} K_{a}, K_{b}, K_{p}$	Parameter coefficients $K_{a}, K_{b} = {\begin{matrix} N V i f t_{l} \leq 1 s \\ (N V / 9) (t_{l} - 10) i f 1 s \leq t_{l} \leq 10 s \\ \begin{matrix} 0 i f t_{l} \geq 10 s \end{matrix} \end{matrix}$ $N V \equiv n o m i n a l v a l u e$ $t_{l} \equiv G N S S s i g n a l r e c e p t i o n l o s s t i m e$