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Has anyone tried to make a compass using two GPS receivers like the NEO-6m or similar and putting them say 1m apart? It looks to me that this would be possible if the accuracy was good enough
Regards
Andreas
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I'm wondering why anyone would even try. How do you envisage this acting as a compass?
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2023-10-07, 07:27 PM
(This post was last modified: 2023-10-07, 07:39 PM by baltika_no_9.)
Right I see. But things like that are around £1000 when you could buy a 10DOF sensor for less than £10. You'd also have to write your own software libraries once you'd understood the theory behind the functioning of such things..
However if you really need very rapid updates and marginal improvements in accuracy then fine. I'd be interested to know how you get on. But I would be surprised if they are (m)any individuals who have undertaken such a project and come up with a reliable working solution. Don't think I'm knocking your idea, it's very interesting and I'd love to understand how it's done but quite a piece of work I suspect.
Good luck!
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Hello,
Wow! That sure brings back memories. Yes, spent a few years attempting to develop that a few years ago. Perhaps technology has changed and now it is viable. It was called a vector system and exactly like you described. Two antennas apart to be able to give a direction. (Why it was called Vector) In the end, it was a bit of a disaster. Sounds simple in theory....but the devil is in the details.
It does work however to work well corrections need to be broadcast and implemented in real time to both of the receivers. Not really something attainable on a boat that continues to travel. (Moreso getting accurate corrections)
We ended up dropping that system and instead developed an inertially coupled GPS system capable of RTK-F positions in real time with spotty coverage. (multipath and terrain)