Commit Graph

61 Commits

Author SHA1 Message Date
Matthias Grob 4c0b6dbe86 Remove trailing whitespaces and trailing duplicate newlines 2023-12-01 13:11:00 -05:00
Mathieu Bresciani efa12ad224 EKF2 simplify covariance propagation (#22344)
* ekf2-derivation: optimize before generating cpp code

* update EKF2 change indicator

Slight changes due to simplifications done in the covariance prediction

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Co-authored-by: bresch <[brescianimathieu@gmail.com](mailto:brescianimathieu@gmail.com)>
2023-11-14 11:22:16 -05:00
bresch 00568985c0 yaw_est: use error-state covariance prediction
Convergence improvements in high yaw rate conditions
2023-11-13 11:37:27 -05:00
Mathieu Bresciani 0d6c2c8ce9 EKF2: Error-State Kalman Filter (#22262)
* ekf derivation: change to error state formulation
* ekf2: update auto-generated code for error-state
* ekf2: adjust ekf2 code for error state formulation
* ekf2_tests: adjust unit tests for error-state EKF
* update change indicator for error-state EKF
* ekf2_derivation: allow disabling mag and wind states

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Co-authored-by: bresch <[brescianimathieu@gmail.com](mailto:brescianimathieu@gmail.com)>
2023-10-31 10:02:18 -04:00
bresch 1c9373e83b update baro static pressure compensation tuning script
Field name changed in vehicle_gps_position
2023-10-16 09:45:28 -04:00
Daniel Agar 9676af2fe6 ekf2: predict covariance avoid explicit temporary nextP 2023-10-13 20:57:33 -04:00
bresch ec15fe3d90 ekf2-derivation: fix terrain and yaw estimator derivations
fix compatibility issues with symforce-0.9.0
2023-10-11 09:49:17 -04:00
bresch cf1c6a8b84 ekf2-derivation: remove old wind covariance derivation 2023-10-11 09:49:17 -04:00
Daniel Agar 5352a64042 ekf2: symforce derivation allow optionally disabling mag and wind states 2023-10-10 17:31:11 -04:00
bresch fc32820e19 ekf2: initialize wind covariance using symforce 2023-10-09 21:03:38 -04:00
Mathieu Bresciani 05fd8c5976 EKF2: centralized auto-generated state (#22183)
* ekf2_derivation: use single source of state definition

The state is defined as an ordered dictionary of group elements and
everything else is generated using that state definition

* ekf2: generated state sample add const reference getter

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Co-authored-by: bresch <[brescianimathieu@gmail.com](mailto:brescianimathieu@gmail.com)>
Co-authored-by: Daniel Agar <daniel@agar.ca>
2023-10-06 10:28:21 -04:00
bresch dac337efc4 ekf2: auto-generate state vector size constant 2023-09-19 09:37:50 -04:00
bresch 779ea3f4d1 ekf2: access state covariance using enum 2023-09-19 09:37:50 -04:00
Daniel Agar 016db84d69 ekf2: covariance update use IMU sample dt (#22032)
- usually the delta angle and delta velocity dt is the same, but they can be slightly different
2023-09-13 09:58:56 -04:00
bresch 0282f85cd4 ekf2: compute quat tilt variance using SymForce 2023-08-29 10:57:49 -04:00
bresch b6fb95247b ekf2_derivation: fix typo 2023-08-08 12:09:56 -04:00
bresch de702a2e63 ekf2: fix function to increase yaw variance 2023-08-08 12:09:56 -04:00
bresch cd77d52dc1 ekf2: calcRotVecVariances using SymForce 2023-08-07 14:28:06 -04:00
Daniel Agar 84b6b472b4 ekf2: change delta angle and delta velocity bias states to accel and gyro bias (#21901)
* ekf2-test: remove outdated codegen comparison

The definition of states changed so the comparison with the old
derivation cannot work anymore.

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Co-authored-by: bresch <brescianimathieu@gmail.com>
2023-07-28 09:31:44 -04:00
bresch eb70c9f6f3 ekf2: update auto-generated code to SymForce 0.9.0 2023-06-26 14:10:54 -04:00
bresch fdf7867a3e ekf2: update derivation to SymForce 0.9.0 2023-06-26 14:10:54 -04:00
Daniel Agar d9ae2ed7ac ekf2: regenerate yaw estimator symforce
- remove underscore uppercase variable naming that can be problematic
2023-06-19 21:00:25 -04:00
bresch 9d7abf2552 ekf2: symforce - use builtin Rot3 and Quaternion operations 2023-06-05 11:58:42 -04:00
bresch 3e3307c0d0 ekf2: fix mag declination innovation angle wrapping 2023-03-21 21:07:28 -04:00
bresch fd33e60f78 ekf: fix GNSS yaw fusion wrapping 2023-03-13 10:46:34 +01:00
Daniel Sahu fa6fda6cce ekf2: new gravity observation (#21038)
Signed-off-by: Daniel M. Sahu <danielmohansahu@gmail.com>
2023-02-07 13:28:58 -05:00
Daniel Agar efe1d43550 ekf2: symforce codegen remove reserved identifier naming
- from the C standard, "All identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any use"
2023-01-30 09:24:32 -05:00
bresch b4b48cae75 ekf2: terrain flow - migrate to Symforce 2023-01-21 15:31:19 -05:00
bresch 49f8bcfc69 ekf2: purge old ekf2 derivation 2023-01-06 18:35:19 -05:00
bresch 420f5ef2b7 ekf2: migrate drag fusion derivation to SymForce 2023-01-05 12:03:24 -05:00
bresch 04f76c932e ekf2: decompose drag vector into x-y components
The drag force is a vector.
drag_x = drag.norm() * vx / v.norm()
2023-01-05 12:03:24 -05:00
bresch 86a3d2459a ekf2: remove old yaw estimator generated code 2022-12-23 10:28:19 -05:00
bresch 7c33019510 EKF2: move yaw estimator to symforce 2022-12-23 10:28:19 -05:00
bresch 4cb327fba3 ekf2: remove old GPS yaw autogenerated code 2022-11-22 09:59:31 -05:00
bresch eff2c6adcf ekf2: migrate GNSS yaw fusion to SymForce 2022-11-22 09:59:31 -05:00
bresch f319cc528b ekf2: remove old flow fusion generated code 2022-11-14 11:51:32 -05:00
bresch b54a4417fa ekf2: migrate flow fusion to SymForce 2022-11-14 11:51:32 -05:00
bresch 96e7ea7a08 ekf2: remove old mag declination auto-code 2022-10-20 18:16:25 -04:00
bresch 2f3ea88099 ekf2: migrate mag declination to SymForce 2022-10-20 18:16:25 -04:00
bresch cf9859965a ekf2: remove old yaw fusion auto-code 2022-10-19 17:34:31 +02:00
bresch f11908a266 ekf2: generate yaw fusion jacobians using symforce 2022-10-19 17:34:31 +02:00
bresch 8b9ac2d7f3 ekf2: remove old mag 3D fusion auto-code 2022-10-17 16:14:56 -04:00
bresch b92cbe12a0 ekf2: migrate mag 3D fusion to symforce
ekf2: merge mag 3d innov var, Hx and Kx computation to reduce flash

Slightly less code produced, almost no performance change

ekf2_mag3D: do not pre-compute Kalman gains

The vector of Kalaman gains is not too expensive to compute using
matrix-vector multiplication. Pre-generating it using CSE takes a lot of
flash space for little benefit.
2022-10-17 16:14:56 -04:00
bresch a8a3107c05 ekf2: remove old covariance prediction code 2022-10-14 11:42:23 -04:00
bresch a4e511b90e ekf2: migrate covariance prediction to SymForce 2022-10-14 11:42:23 -04:00
bresch bdd043f27f ekf2: fix sideslip fusion sign 2022-10-12 16:14:47 +02:00
bresch 53865118fb ekf2: remove old sideslip fusion code 2022-10-12 09:55:35 -04:00
bresch 5f54f6fcda ekf2: migrate sideslip fusion to SymForce
- split fusion into update (compute innov and innov_var) and actual fusion to the state vector
- use estimator_aid_source_1d struct to group the data
2022-10-12 09:55:35 -04:00
bresch 4b687beb3b ekf2: remove old airspeed fusion code 2022-10-03 10:59:42 -04:00
bresch 29ebef1f74 ekf2: migrate fuse_airspeed to SymForce 2022-10-03 10:59:42 -04:00