Software-Defined Radio Technologies for GNSS Receivers: A Tutorial Approach to a Simple Design and Implementation

Table 1

Space segment characteristics of the major GNSS systems.

	GLONASS	GPS	Galileo
Number of satellites	24	30	30
Number of orbital planes	3	6	3
Number of satellites per orbit	8	4	10
Orbital inclination	64.8°	55°	56°
Semimajor axis	25,508 km	26,560 km	29,601 km
Period	≈11 h 15 m	≈11 h 58 m	≈14 h 05 m