4 ms·
It's not just precision, but availability of the signal and speed. Having more signals in natural and urban canyons improves accuracy and speed when there are
by Nokinside 10y ago
It's not just precision, but availability of the signal and speed. Having more signals in natural and urban canyons improves accuracy and speed when there are more satellites.
One-chip GPS/GLONASS multiconstellation receivers have been on the market for some time. Millions of consumer units sold. Many smartphones have them.
Quad-constellation (GPS, GLONASS, Galileo, BeiDou) receiver chips have been on the market for some time.
For example: STA8090GA, It's automotive Grade GPS/Galileo/Glonass/Beidou/QZSS receiver
http://www.st.com/content/ccc/resource/technical/document/data_brief/68/22/34/81/68/78/4a/41/DM00156957.pdf/files/DM00156957.pdf/jcr:content/translations/en.DM00156957.pdf http://www.st.com/content/ccc/resource/technical/document/da...