Commit Graph

1158 Commits

Author SHA1 Message Date
bresch 0639f5370c ekf2: fix mag and wind covariance prediction 2024-03-07 11:06:31 -05:00
bresch 2bacb4b65d ekf2: update change indicator 2024-03-07 15:11:47 +01:00
bresch 421f13e4b5 ekf2: fix joseph covariance update for Schmidt-Kalman filter
If part of the Kalman gain is zeroed, the first step of the joseph
update does not produce a symmetrical matrix.
2024-03-07 15:11:47 +01:00
bresch 6f9a378247 yaw_est: force set gyro bias when at rest
The gyro bias estimate from EFK2 is really good when at rest and should
be used by the yaw estimator to prevent heading drifts due to poor
heading observability.
2024-03-05 14:00:06 -05:00
bresch 28db3e1c8c ekf2: update change indicator 2024-02-27 12:33:43 -05:00
bresch e9d43015ce ekf2: fix unit tests failing due to mag fusion changes 2024-02-27 12:33:43 -05:00
bresch b46fc9a67d ekf2 sensor_sim: set correct world mag field 2024-02-27 12:33:43 -05:00
bresch b80f15f7b5 ekf2-mag_auto: always use mag 3D after takeoff 2024-02-27 12:33:43 -05:00
bresch 051baec9c4 ekf2: allow wind dead-reckoning after manual position reset
Reset velocity using airspeed and start navigating
2024-02-27 09:34:05 -05:00
Daniel Agar 8001132d33 ekf2: ZeroGyroUpdate move to fuseDirectStateMeasurement 2024-02-26 12:32:59 -05:00
bresch 08a2a6c836 update EKF2 change indicator 2024-02-26 12:32:59 -05:00
bresch d501d8e1d4 ekf2: use Joseph stabilized update in direct state observations 2024-02-26 12:32:59 -05:00
bresch 9d9766c6cf ekf2: use Joseph stabilized covariance update 2024-02-26 12:32:59 -05:00
bresch 37a40d3fc2 baro static pressure compensation tuning: remove dependency to baro bias
`estimator_baro_bias` requires to have GNSS and baro hgt active and GNSS as the reference. This is quite restrictive. Instead, we can simply use a high-passed version of the baro error.
2024-02-23 10:07:13 +01:00
Daniel Agar 506c60c471 ekf2: declination fusion don't use uninitialized parameter (EKF2_MAG_DECL) 2024-02-21 09:45:44 -05:00
Daniel Agar 8243b4f474 ekf2: move vel/pos reset helpers 2024-02-20 13:16:24 -05:00
Daniel Agar 22b957696d ekf2: velocity/position fusion helper minor consistency cleanup 2024-02-20 13:16:24 -05:00
Daniel Agar c338891677 ekf2: split vel_pos_fusion.cpp 2024-02-20 13:16:24 -05:00
Daniel Agar c4c41c49e5 ekf2: move fuseVelPosHeight() -> fuseDirectStateMeasurement()
- don't bother keeping bad_vel_{N,E,D} and bad_pos_{N,E,D} fault status bits
2024-02-20 13:16:24 -05:00
Daniel Agar 021dd0d0af ekf2: fix EV height bias predict call
- needs to be called every iteration
2024-02-20 11:47:53 -05:00
bresch c221da27a7 ekf2: set attitude validity flag using centralized function 2024-02-20 11:33:30 -05:00
Daniel Agar 1032dd3470 ekf: fix measurementUpdate comment typo 2024-02-19 09:41:49 +01:00
Daniel Agar 8dc3975456 ekf2: only populate gnss pos aid src status if ref initialized
- this is a minor logging improvement when plotting the position from the beginning of the log (often a replay session)
2024-02-15 13:13:10 -05:00
muramura f636414ca7 tuning_tools: Change 1G to a more accurate value 2024-02-09 10:26:57 -05:00
bresch 17d55dddd6 ekf2-drag: do not generate Kalman gain to save flash 2024-02-06 12:16:33 +01:00
bresch 1efb08375a ekf2: let drag fusion affect the complete state vector
This improves tilt estimation and can extend the inertial dead-reckoning
validity period
2024-02-06 12:16:33 +01:00
bresch 9c02e384e6 ekf2-agp: follow measurement reset 2024-01-30 11:23:55 -05:00
bresch 5d9081b0dd ekf2-agp: ensure logging of AGP aid_src topic 2024-01-30 11:23:55 -05:00
bresch 4268759d4a ekf2-agp: reset to measurement on fusion timeout 2024-01-30 11:23:55 -05:00
bresch 80f20e619c ekf2: zvup sequential fusion 2024-01-29 12:12:37 -05:00
Daniel Agar 1d70e32551 Update world_magnetic_model to latest Wed Jan 24 11:14:20 UTC 2024
Co-authored-by: PX4 BuildBot <bot@px4.io>
2024-01-26 09:08:51 -05:00
Daniel Agar 4e0967889c ekf2: add verbose print status (moved out of DEBUG_BUILD) 2024-01-24 21:49:26 -05:00
Daniel Agar 51155f7a29 ekf2: treat inhibited states as "consider states" and remove conservative covariance matrix fixes (#22597)
When a state stops to be estimated it becomes a "consider state". Its value and variance are frozen but its covariance with other states continue to evolve normally.

 - removes conservative accel bias variance limiting
 - force symmetry is skipped after fusion of NED vel/pos (a direct measurement)

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Co-authored-by: bresch <brescianimathieu@gmail.com>
2024-01-24 14:14:09 -05:00
Mathieu Bresciani cb396a6339 ekf2: fix computation of tilt and yaw variances add them to logging
Co-authored-by: bresch <bresch@users.noreply.github.com>
2024-01-24 12:14:15 -05:00
bresch da28d9a7f2 ekf2-grav: rename g-force unit to g0 to avoid confusion with grams 2024-01-24 13:26:25 +01:00
Daniel Agar bf7da6430d ekf2: consolidate LPOS & GPOS accuracy methods 2024-01-22 12:34:08 -05:00
bresch 7c7a3c117a ekf2-gravity: nomalize gravity fusion and proper sequential fusion 2024-01-18 20:39:16 -05:00
bresch d624fbba07 ekf2-grav: lower gate to reject real acceleration more effectively 2024-01-18 20:39:16 -05:00
bresch c28972d15e ekf2-grav: only use filtered accel norm to start/stop the fusion
Using the raw data makes the swith too sensitive to noise
2024-01-18 20:39:16 -05:00
Daniel Agar ed0d26de8a ekf2: improve attitude estimation without horizontal aiding
- fake_pos only if at rest or tilt variances becomes large
 - fake pos: don't run when grav fusion is enabled
 - gravity fusion enabled by default
 - gravity: only fuse when accel norm and lpf norm are consistent

Co-authored-by: bresch <brescianimathieu@gmail.com>
2024-01-17 10:27:25 -05:00
Daniel Agar 64f28c4c07 ekf2: delete unused gps error norm field 2024-01-12 10:14:32 -05:00
Daniel Agar 8a031677d5 ekf2: verbose debug print status include state variances 2024-01-11 11:53:20 -05:00
Daniel Agar 4cb293020a ekf2: remove sensor sample uORB::Subscription missed perf counters
- these served their purpose, but are no longer useful
 - still worth keeping the IMU subscription missed perf count to catch any scheduling issues
2024-01-11 11:52:29 -05:00
Daniel Agar 8bcba6128a ekf2: fix resetGlobalPosToExternalObservation whitespace 2024-01-11 10:59:56 -05:00
Roman Bapst 603c3f6636 added support to reset vehicle position based on external position (#22444)
via command MAV_CMD_EXTERNAL_POSITION_ESTIMATE

Signed-off-by: RomanBapst <bapstroman@gmail.com>
2024-01-11 13:09:22 +01:00
Daniel Agar d45c3d3407 ekf2: verbose (DEBUG_BUILD) print status with Matrix improved print
* ekf2: verbose print status
 * matrix/Matrix improve print output
 * bold diagonal elements, print ring buffer entry size
 * print in scientific notation when >= 10 to respect max size

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Co-authored-by: bresch <brescianimathieu@gmail.com>
2024-01-10 09:46:04 -05:00
MaEtUgR 74549e29a5 [AUTO COMMIT] update change indication 2023-12-21 11:42:08 +01:00
bresch 36eb319834 ekf2-yaw_est: split imu and velocity updates 2023-12-18 18:11:20 +01:00
bresch bba30663cc update change indicator
Caused by the GNSS checks being performed at the delayed-time horizon
2023-12-18 18:11:20 +01:00
bresch a653073d4f ekf2: perform GNSS checks at delayed-time horizon
- never fuse a measurement that is not passing the checks
- cleanup and simplify GNSS vel/pos control logic
2023-12-18 18:11:20 +01:00