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GalileanPreintegration.h File Reference

Left-invariant Galilean IMU preintegration with bias correction. More...

Go to the source code of this file.

Classes

class  gtsam::GalileanPreintegration
 IMU preintegration on Gal(3) using GTSAM's left-invariant local error. More...

Namespaces

namespace  gtsam
 Global functions in a separate testing namespace.

Detailed Description

Left-invariant Galilean IMU preintegration with bias correction.

This class implements the direct-product model developed in "Left-Invariant Galilean IMU Preintegration in Inertial and Rotating Frames." It combines exact held-input Gal(3) increments with the physical six-axis IMU bias on Gal(3) x R^6, using the standard left-invariant error and a right-applied first-order bias correction.

The model retains Delama et al.'s held-input Galilean composition and uses the endpoint and rotating-frame structure of Brossard et al., but it is not either prior formulation. See navigation/doc/GalileanImuFactor.ipynb for the conventions, derivation, and detailed comparison.