It's because the quaternion is part of the state of the Kalman filter. | Hacker News

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adalacelove on Feb 26, 2025 | parent | context | favorite | on: Rediscovering Quaternions

It's because the quaternion is part of the state of the Kalman filter.

ballooney on Feb 26, 2025 [–]

Not in any intrinsic way, it’s just a mildly better way of representing attitude if your state vector includes attitude.

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