GNSS 2 GPS+GLO+GALILEO nav update rate?

VDLJu · July 25, 2018, 4:40pm

Hello,

I couldn’t find any specific information of how fast is the navigation message update rate when GPS+GLONASS+GALILEO is used?

For a M8N it would be 3hz, but M8Q is faster for dual and single systems, so is it >=5hz?
There is so much divergent information so I could be wrong about those rates.

pavel-kirienko · July 25, 2018, 5:05pm

Please refer to the section 2.4.1. GNSS receiver, configuration parameter uavcan.pubp-fix. The acceptable interval range is from 66 milliseconds (15 Hz) to 2 seconds (0.5 Hz). The navigation solution update rate is independent of the set of active constellations.

VDLJu · July 30, 2018, 9:37am

So I can have GPS+GLONASS+GALILEO enabled and use 5hz update rate on ardupilot? Right?

Is there anything i’m missing or how this is possible as no-one else is selling similar device?

pavel-kirienko · July 30, 2018, 10:09am

Well I can’t comment on the state of the market, but you are right. Zubax GNSS 2 supports up to 15 Hz navigation update rate independent of the active constellations.