I’m developing an application and I would really appreciate some insight either in telling me if my ideas are worth trying or not.
The summary of my application is:
- I’m working with one Reach with NTRIP correction.
- The device will be moving slowly in general (with periods of time being stopped).
- It’s not important to have a lot of measurements, since I only want to know the location of the points where the device stopped. I do need though, that after filtering the data, what’s left has to be precise.
Those 3 points are fairly easy to achieve with Reach under good conditions. My problem is that I won’t have good sky view most of the time, since the Reach will be in a vehicle doing work under trees.
I’ve tried the performance of the Reach under similar circumstances and I got good measurements, as much as really bad ones, this gives me hope that what I want to do is doable.
For what I could read on the forum this is pretty different from what people is using Reach for, so I don’t pretend a solution I’m just looking for opinions and/or advice on this project.
Things I’ve consider (couldn’t try them yet due to the weather):
- I’m under the impression that by raising the “Elevation mask angle” I should get more reliable measurements, is this right?
- Applying some filter (e.g. Kalman) to the position output; not quite sure if will be helpful though.
If I miss some important information please point it out.
Any comment/suggestion/idea will be appreciated.
[EDIT]: I did get better results discarding data with speed greater than a parameter, stil I have points that are wrong for sure. Is the speed value in GPVTG sentences calculated in base of positions?Or does it came from an internal IMU?.