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@dakejahl
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A practical GNSS message for PX4 and Ardupilot

@tridge
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tridge commented Feb 1, 2026

@dakejahl I've always disliked the covariance matrices, but there is a significant cost to changing to Fix3 as we'd need to send both for many years, and we'd pay a flash cost of supporting both. The convention of mapping the covariance to length 6 and extracting the 3 ac curacies from that does work well, even though it is ugly
I think we'd need a stronger reason to go to a Fix3 than this, sorry

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dakejahl commented Feb 1, 2026

@tridge Understood. The primary motivation is quality metrics. Would you be open to another auxiliary gnss message for noise, jamming, differential corrections age, etc?

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2 participants