20090918

Glonass/GPS is better than just GPS

Glonass/GPS vs GPS

The advantages of GPS/GLONASS vs GPS alone are: better accuracy due to better geometry, GLONASS unaffected by selective availability, and complementary coverage at all latitudes; better availability due to more satellites in view; and better integrity with all-in-view implementation. (AIAA)

The status of the GLONASS constellation is reported, and the (unpublished) P code navigation data message is compared to the (published) C/A code message. The architecture and functionality of the 3S navigation receivers are discussed, and performance results are presented. The R-100, a C/A code integrated GPS /GLONASS receiver, has a 12-channel capability with each GLONASS satellite requiring one channel and each GPS satellite requiring two channels.

As costs continue to lower for GPS/GLONASS receivers and modules, their propensity for adoption continues to increase.