Commit Graph

621 Commits

Author SHA1 Message Date
Paul Riseborough c828bdfbc9 AP_NavEKF3: Reduce output observer vertical velocity error when bad IMU 2021-09-23 18:55:28 +10:00
Paul Riseborough 8429c66860 AP_NavEKF3: Make subsequent bad IMU event detections faster 2021-09-23 18:55:28 +10:00
Paul Riseborough 458c67639d AP_NavEKF3: Force velocity state to follow GPS when IMU data is bad 2021-09-23 18:55:28 +10:00
Paul Riseborough c0d88e2673 AP_NavEKF3: Fix vertical velocity reset
Fixes bug that prevents the vertical velocity being reset to the GPS if the position aiding has already timed out and improves sensitivity of the bad IMU data check.
2021-09-23 18:55:28 +10:00
Paul Riseborough 17c2ba5ac1 AP_NavEKF3: Fix bug causing too frequent resets if bad IMU data detected 2021-09-23 18:55:28 +10:00
Peter Barker b66fd214f0 AP_NavEKF3: move from HAL_NO_GCS to HAL_GCS_ENABLED 2021-09-22 21:37:00 +10:00
Paul Riseborough e9c339a0a0 AP_NavEKF3: fix wind speed covariance initialisation bug 2021-09-21 17:16:36 +10:00
Josh Henderson 3006d50f97 AP_NavEKF3: use vector.xy().length() instead of norm(x,y) 2021-09-14 10:43:46 +10:00
Peter Barker dabba69b5e AP_NavEKF3: improve description of XKF4/NKF4 fields
Courtesy Paul Riseborough here: https://github.com/ArduPilot/ardupilot_wiki/issues/3641#issuecomment-913577132
2021-09-08 17:06:12 +10:00
Randy Mackay 63e579d738 AP_NavEKF3: add using_extnav_for_yaw 2021-08-31 09:20:17 +10:00
Randy Mackay 0edfd2634f AP_NavEKF3: rename using_external_yaw to using_noncompass_for_yaw 2021-08-31 09:20:17 +10:00
Randy Mackay d1f2acd813 AP_NavEKF3: rename varInnovOptFlow to flowVarInnov
also renamed innovOptFlow to flowInnov
2021-08-24 16:49:04 +09:00
Randy Mackay 85ade10e85 AP_NavEKF3: ofDataNew made local 2021-08-24 16:49:04 +09:00
Randy Mackay 11847cfcf5 AP_NavEKF3: always calculate optical flow innovations and variances 2021-08-24 16:49:04 +09:00
Randy Mackay 914a8dca49 AP_NavEKF3: for loops use uint8_t instead of unsigned 2021-08-24 16:49:04 +09:00
Randy Mackay 5779ebd177 AP_NavEKF3: remove unused Tbn_flow 2021-08-24 16:49:04 +09:00
Randy Mackay f9fd63e01e AP_NavEKF3: remove unused optflow calcs 2021-08-24 16:49:04 +09:00
TunaLobster d6a5622fcb AP_NavEKF3: Remove @RebootRequired: False 2021-08-19 10:00:16 +10:00
Andrew Tridgell 5c86cc6828 AP_NavEKF3: added EK3_PRIMARY parameter
allows for selection of which IMU to use on startup
2021-08-17 06:42:42 +10:00
Pierre Kancir 8216905f47 AP_NavEKF3: remove unecessary assignements 2021-08-12 10:39:49 +09:00
Randy Mackay 2a2cde68ef AP_NavEKF3: skip GSF reset count check if source actively changed
also only fail all compass on emergency reset
2021-08-10 09:44:57 +10:00
Andrew Tridgell ff59e0f72f AP_NavEKF3: fixed output LLH to account for IMU offset
thanks to Paul and Randy
2021-08-09 19:19:21 +10:00
Randy Mackay 2f1444772b AP_NavEKF3: XKF3.IYAW logs in degrees 2021-08-09 08:10:42 +09:00
Randy Mackay d961186e0c AP_NavEKF3: remove unused EK3_GSF_DELAY param 2021-08-06 07:00:46 +09:00
Andrew Tridgell 8681ecebfd AP_NavEKF3: mark log messages as streaming 2021-08-03 10:23:36 +10:00
Peter Barker c34284b6eb AP_NavEKF3: stop using AHRS as conduit for Compass pointer 2021-07-30 12:19:42 +10:00
Paul Riseborough 17ead96250 AP_NavEKF3: Revert IMU and wind speed process noise parameter defaults
These give noisier state estimates, but are more robust to rapid changes in IMU biases.
TODO implement a means of using the modified parameters when there are more than one EKF instance running with IMU's that are sampling at a higher rate.
2021-07-22 18:20:45 +10:00
Paul Riseborough aa6ac4a874 AP_NavEKF3: retune wind process noise for better airspeed fault detection 2021-07-22 18:20:45 +10:00
Paul Riseborough 8fd1e98701 AP_NavEKF3: Fix bug preventing copter wind estimation at low speed
Also re-tunes process noise default for smoother wind velocity state estimates.
2021-07-22 18:20:45 +10:00
Paul Riseborough 0088b0f3fe AP_NavEKF3: Revert EK3_BETA_MASK parameter extension
These are not required due to use of bit 7 in FLIGHT_OPTIONS to achieve the same function.
2021-07-22 18:20:45 +10:00
Paul Riseborough 59d31cc7d5 AP_NavEKF3: Rework non-airspeed wind estimation
Faster wind estimation when not using airspeed with acceptable noise in wind velocity estimates.
2021-07-22 18:20:45 +10:00
Paul Riseborough 5fa3ed5755 AP_NAvEKF3: use #define value for bad IMU hold time 2021-07-22 18:20:45 +10:00
Paul Riseborough 7497590363 AP_NavEKF3: Increase lower state variance limit when vibration affected
This makes state corrections from GPS and baro observations more aggressive
2021-07-22 18:20:45 +10:00
Paul Riseborough 3e123c0a30 AP_NavEKF3: Use sensor variance when checking for bad IMU 2021-07-22 18:20:45 +10:00
Paul Riseborough e3bdbcd8ea AP_NavEKF3: Make bad IMU status more persistent 2021-07-22 18:20:45 +10:00
Paul Riseborough ccc95d8726 AP_NavEKF3: Add accessor function for vibration affected status 2021-07-22 18:20:45 +10:00
Paul Riseborough ed61287410 AP_NavEKF3: Don't update accel bias states if vibration affected 2021-07-22 18:20:45 +10:00
Paul Riseborough 62d70a628e AP_NavEKF3: Use large accel process noise when IMU data is bad 2021-07-22 18:20:45 +10:00
Paul Riseborough 5eb7751682 AP_NavEKF3: Adjust gyro bias process noise tuning
NEw value is a compromise between roll/pitch angle and horizontal state velocity estimation errors and the noise in the gyro bias estimate
2021-07-22 18:20:45 +10:00
Paul Riseborough 72dc998509 AP_NavEKF3: Allow smaller dvel bias state variances for improved tuning 2021-07-22 18:20:45 +10:00
Paul Riseborough 0f2661c31c AP_NavEKF3: Retune IMU process noise
Required to achieve equivalent fusion noise and weighting on IMU vs other sources to previous param defaults with the old covariance prediction equations.
2021-07-22 18:20:45 +10:00
Paul Riseborough 171eed5d85 AP_NavEKF3: Make gyro bias learning less noisy 2021-07-22 18:20:45 +10:00
Paul Riseborough ce4d13091a AP_NavEKF3: Fix bug preventing learning of XY IMU dvel bias in flight 2021-07-22 18:20:45 +10:00
Paul Riseborough 6242ce19fa AP_NavEKF3: Change powf(x,2) to sq(x) 2021-07-22 18:20:45 +10:00
Paul Riseborough bb9eed28a9 AP_NavEKF3: Update covariance prediction equations 2021-07-22 18:20:45 +10:00
Paul Riseborough 7b8e935880 AP_NavEKF3: Use alternate form for quaternion to rotmat equations in derivation 2021-07-22 18:20:45 +10:00
Peter Barker 795f412264 AP_NavEKF3: pass NavEKF failures back up to callers 2021-07-21 18:02:26 +10:00
Andrew Tridgell fc2118f42b AP_NavEKF3: process GPS yaw independently of GPS fix
this processes GPS yaw with its own timestamp and as a separated step
from fusing position and velocity. This makes the yaw time handling
more accurate as yaw for moving baseline GPS comes in as a separate
piece of data from the position and velocity
2021-07-21 17:59:49 +10:00
Andrew Tridgell 0b9cde5812 AP_NavEKF3: fixed indentation in readGpsData() 2021-07-21 17:59:49 +10:00
Peter Barker a4410a4b2e AP_NavEKF3: log EKF data source set in XKFS 2021-07-21 16:31:53 +10:00