fusioncore_ros
ROS 2 UKF sensor fusion for IMU, wheel encoders, GPS, and visual SLAM pose. 23-state filter with ECEF-native GPS handling, online gyro/accel/encoder bias estimation, adaptive noise covariance, chi-squared outlier rejection on every sensor, and map reinitialization recovery for GPS-denied operation. Drop-in robot_localization alternative. Benchmarked on 12 full-length NCLT sequences: wins 10 of 12 vs robot_localization EKF.