32 ms·
Is accuracy at that level actually possible with GPS? Precision seems likely, but it is substantially more difficult to provide absolute accuracy at that level.
by ISL 7y ago
Is accuracy at that level actually possible with GPS? Precision seems likely, but it is substantially more difficult to provide absolute accuracy at that level.
- urschrei 7y agoI'm by no means an expert, but yes, if you can use a modern realisation (e.g. ITRF2014) and have access to VLBI / DORIS / GNSS then sub-centimetre accuracy is possible, though not in real time.
- scblock 7y agoYes, but not on its own, that I am aware. High accuracy GPS is is based on a combination of GPS satellite data itself with real time or post-processed positional correction using references stations which themselves are placed in a known surveyed location. In the US, 60 cm accuracy is often possible with nothing more than WAAS corrections. 10 or even 1 cm accuracy is often possible in real time with access to an RTK network.