Hi Emlid Community,
I am seeking clarification with regards to processing a Stop & Go survey with PPP data. I do not have an NTRIP account, CORS stations will always be too far away, and most of my surveys will need to be completed in a day, so no possibility in creating my own known base point before capturing survey points.
Here is my field workflow:
- I followed the Stop and Go with Emlid Flow set up instructions here: How to log data for Stop & Go with Emlid Flow | Reach RS2/RS2+
- My base and rover will record raw RINEX and UBX logs for the duration of my survey. The base will get an average single position for at least 30 minutes before surveying, however, I usually let it run for most of the day to get at least 4 hours of raw logs to send into NRCan PPP service then survey my points with the rover at the end of the day.
- I will wait at least a week before sending in the base raw logs to NRCan to obtain my known point for cm level accuracy.
- Process the points in Emlid Studio after obtaining my base coordinates from NRCan by using this workflow: Stop & Go with Emlid Flow | Emlid Studio.
However, I am unclear at which point in the above workflow where I would enter my base coordinates I received from the PPP service. In the above document in step 3, it says:
“Set the base coordinates. By default, the RINEX Header Position is used. If you placed your base over the point with known coordinates, enter them manually, including the antenna height.” But I did not use my known coordinates in the field as I did not have my point yet.
In a number of threads, including this one: Post-Processing vs Survey Mode with unknown base position - #7 by EBE111057 , says that, "after you get the precise base position from the PPP service, there are 2 options: (1) calculate the shift from the base coordinates you averaged in Base mode and add this value to all GCP coordinates (2) Using stop & go processing.
So I want to try the Stop & Go Processing to correct my GCPs to account for the shift after getting my PPP coordinates. I usually just calculate the shift in excel, but the less moving parts the better to minimize human error. So my question is at what point in the Emlid Studio Stop & Go workflow do I enter my NRCan PPP coordinates? All workflows are for when you already have a known point and I get kinda confused of what to do for my RTK/ PPP hybrid workflow.