TAG: RAIM

Altus Positioning Systems Pinpoints Cause for GLONASS Default

April 4, 2014By

Regarding the April 1–2 11-hour downtime for the full GLONASS constellation, president and CEO Neil Vancans of Altus Positioning Systems provides this additional information: “From the reports on GLONASS problems, we have an explanation that may be used in our technical support replies: “Our analysis reveals the GLONASS integration algorithms skipped an interval of around 1.5 minutes at the control... read more

Expert Advice: Which Is the Best GNSS Receiver?

October 1, 2013By
Jaynata Ray

By Jayanta Ray Aerospace GNSS receivers constitute a class apart, compared to their more popular relatives used in automotive, cell phone, or survey applications. Automotive and cell-phone receivers can sometimes provide position information even in indoor environments. The survey class of receivers provides centimeter-level accuracies. However, neither group can guarantee the reliability and integrity of the position solution, and users... read more