Commit Graph

349 Commits

Author SHA1 Message Date
Randy Mackay f5a04fd1a3 AP_NavEKF3: shorten buffer size send_text message length 2020-09-29 08:57:52 +09:00
Randy Mackay 7398529f6b AP_NavEKF3: minor format fix 2020-09-28 20:57:39 +09:00
Andrew Tridgell 8a4b0f858a AP_NavEKF3: reset body mag variances at key points
we need to reset the body mag variances if we change sensors or if we
are starting 3D fusion. When not doing 3D fusion we zero the
variances, so they must be initialised again when we restart
fusion. This fixes a bug in handling the variances on a 2nd flight
2020-09-20 09:25:57 +10:00
Andrew Tridgell e9185f526b AP_NavEKF3: add comments on state indexes
make it easier to check indexes
2020-09-20 09:25:57 +10:00
Andrew Tridgell 1f21d72c79 AP_NavEKF3: fixed init of earth state mag variances
we were starting with zero variance for X and Y earth states, it
should start with sq(magNoise)
2020-09-20 09:25:57 +10:00
Andrew Tridgell 2bc7d17e7a AP_NavEKF3: improved core comparison to check alignment
this adds coreBetterScore() which takes account of tilt and yaw
alignment when comparing cores for lane switching

this ensures we don't switch to a lane that is unaligned due to the
zero error score for unaligned lanes
2020-09-14 20:29:04 +10:00
Andrew Tridgell c03c43e52c AP_NavEKF3: use same mag switch pattern as EKF2
based on Pauls suggested change
2020-09-08 11:01:14 +10:00
Andrew Tridgell 3836b59041 AP_NavEKF3: fixed handling of failed compass
when a compass goes unhealthy due to sensor failure we should try
another compass after 10s if another compass is available
2020-09-08 11:01:14 +10:00
Andrew Tridgell 458ade86f5 AP_NavEKF3: fixed segfault when IMU mask covers more IMUs than GSF mask 2020-08-28 10:17:00 +10:00
Harshit Kumar Sankhla edc3709653 AP_NavEKF3: implement sensor affinity using EK3_AFFINITY parameter
this allows the EKF core index to be used to select a GPS/baro/mag
instance. This is an alternative to GPS blending that allows EKF lane
switching to be used to select the right combination of GPS and IMU
add logging to XKFS message
2020-08-27 20:20:51 +10:00
Harshit Kumar Sankhla d7edc946b6 AP_NavEKF3: Relative Error based Lane-Switching
Improvments to the lane selection logic, we accumulate error for each
EKF lane relative to the primary for a more robust core selection
2020-08-27 20:20:51 +10:00
Randy Mackay 46a7e96c48 AP_NavEKF3: readRngBcnData avoids array overflow from beacon count 2020-08-25 09:38:10 +09:00
Randy Mackay b314195f6e AP_NavEKF3: minor spelling fix 2020-08-25 09:38:10 +09:00
Randy Mackay b86e16e927 AP_NavEKF3: readRngBcnData gets minor formatting fix 2020-08-25 09:38:10 +09:00
Randy Mackay 384029d278 AP_NavEKF3: rngBcnDataNew made local 2020-08-25 09:38:10 +09:00
Randy Mackay 8c877f02af AP_NavEKF3: shrink beacon arrays and add assert 2020-08-25 09:38:10 +09:00
Randy Mackay d292ba028a AP_NavEKF3: increase beacon buffer to imu + 1 2020-08-25 09:38:10 +09:00
Randy Mackay 886a7d44a7 AP_NavEKF3: allow switch to ExtNav from optflow 2020-08-24 16:52:34 +09:00
Randy Mackay 6bf2057712 AP_NavEKF3: minor formatting fixes 2020-08-21 13:18:58 +09:00
Randy Mackay 4c40d2ac3f AP_NavEKF3: readyToUseBodyOdm uses delayed imu and wheel encoder timestamps 2020-08-21 13:18:58 +09:00
Randy Mackay 056a2de260 AP_NavEKF3: wheelOdmDataNew member made local
this variable is never used outside the writeWheelOdom method
2020-08-21 13:18:58 +09:00
Randy Mackay 3d5161f364 AP_NavEKF3: remove unused usingWheelSensors variable
This variable was set but never consumed
2020-08-21 13:18:58 +09:00
Randy Mackay c4b7a1c41a AP_NavEKF3: flowDataToFuse moved to local variable
This variable is never used outside the SelectFlowFusion() method
This variable is always updated at the top of the function meaning subsequent calls to the function will always overwrite its previous value
2020-08-21 13:12:10 +09:00
Randy Mackay 41acf555bf AP_NavEKF3: fix skipping of optflow fusion if mag fusion performed 2020-08-21 13:12:10 +09:00
Andrew Tridgell 44d5a923cc AP_NavEKF3: apply min GPS accuracy at measurement point
this fixes an issue a RTK GPS gives 1cm horizontal and vertical
accuracy and that causes the variances to get too small
2020-08-21 07:40:13 +10:00
chobits c722367c6c AP_NavEKF3: move extNavVelNew to local variable 2020-08-12 15:40:38 +09:00
chobits 7ad9e3548f AP_NavEKF3: make reset source variable local 2020-08-10 09:43:28 +09:00
Peter Barker 6b701ae3b3 AP_NavEKF3: correct includes 2020-08-07 19:20:07 +10:00
chobits 4b8be2e535 AP_NavEKF3: fix comments 2020-08-04 18:16:18 +10:00
Paul Riseborough c8bbbd2720 AP_NavEKF3: Fix bug preventing setting of mag field states 2020-07-25 20:46:04 +10:00
Randy Mackay d8f2d0cf8d AP_NavEKF3: max delay includes visual odometry 2020-07-21 09:31:52 +10:00
chobits 564244ce9a AP_NavEKF3: fix extnav vel reset 2020-07-17 14:13:06 +09:00
Andy Piper e35458cedf AP_NavEKF3: INS get_sample_rate() renamed to get_loop_rate_hz() 2020-07-10 16:45:29 +10:00
Paul Riseborough 24fccd5d87 AP_NavEKF3: Don't delay GPS use unnecessarily
Fixed wing should not wait for bias state convergence after in-flight yaw alignment
2020-07-07 15:33:58 +10:00
Paul Riseborough 9a4108f55e AP_NavEKF3: Simplify setting EK3_MAG_CAL
Don't require user to separately set EK3_MAG_CAL to fly without a magnetomer
2020-07-07 15:33:58 +10:00
Paul Riseborough 0dc598a6e1 AP_NavEKF3: Fix param description and comment 2020-07-07 15:33:58 +10:00
Paul Riseborough 21ea5d5039 AP_NavEKF3: Require GSF yaw history for reset when not using a yaw sensor 2020-07-07 15:33:58 +10:00
Paul Riseborough f86c2e1db6 AP_NavEKF3: Don't fuse EKF-GSF yaw for FW flight 2020-07-07 15:33:58 +10:00
Paul Riseborough 354b551ef0 AP_NavEKF3: Handle repeated FW flight without magnetometer
The EKF can build up large yaw errors on ground so it is safer to stop using GPS and re-align after launch as per first launch.
2020-07-07 15:33:58 +10:00
Paul Riseborough 8ff6780323 AP_NavEKF3: Clarify distinct use cases for 'takeoff expected' 2020-07-07 15:33:58 +10:00
Paul Riseborough d1a0c2eb30 AP_NavEKF3: Start EKF-GSF yaw estimator before fixed wing takeoff 2020-07-07 15:33:58 +10:00
Paul Riseborough b469a80633 AP_NavEKF3: Reset all co-variances when performing a yaw reset 2020-07-07 15:33:58 +10:00
Paul Riseborough d8c2096ad8 AP_NavEKF3: improve angle accuracy during no mag launch 2020-07-07 15:33:58 +10:00
Paul Riseborough f7c8ee807c AP_NavEKF3: Reset yaw estimator bias states at start of flight
Enables yaw bias to be learned when sitting stationary on ground.
2020-07-07 15:33:58 +10:00
Paul Riseborough bcd23e1063 AP_NavEKF3: Fix one frame delay in processing yaw estimator velocity data 2020-07-07 15:33:58 +10:00
Peter Barker 2e55584417 AP_NavEKF3: correct comments on getFilterFaults and getFilterTimeouts methods 2020-07-07 10:50:41 +10:00
Randy Mackay ec5f84c926 AP_NavEKF3: remove unused terrainHgtStableSet_ms 2020-06-24 21:16:50 +09:00
Randy Mackay dccc3e22d9 AP_NavEKF3: minor comment fix re RNG_USE_HGT 2020-06-24 21:16:50 +09:00
Paul Riseborough ed5b695c94 AP_NavEKF3: Clarify intended use of setTerrainHgtStable accessor 2020-06-24 21:16:50 +09:00
Dr.-Ing. Amilcar do Carmo Lucas fca8d33c50 AP_NavEKF3: fix vertical flyaways when rangefinder stops providing data 2020-06-24 21:16:50 +09:00