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286 Commits

Author SHA1 Message Date
chobits c7817eaca1 AP_NavEKF3: support VISION_SPEED_ESTIMATE 
Co-authored-by: Randy Mackay <rmackay9@yahoo.com>
 2020-06-02 08:33:42 +09:00
Peter Barker bf3cb977fd AP_NavEKF3: clarify yaw reset error message 
The current wording can be taken to indicate that the mag sensors
stopped, causing this issue.
 2020-05-26 10:05:35 +10:00
Paul Riseborough 939331ae8d AP_NavEKF3: Fix double iteration of axes in SelectMagFusion 2020-05-18 09:38:45 +10:00
Randy Mackay 6c20264d9c AP_NavEKF3: minor comment fix 2020-05-15 11:23:07 +09:00
Randy Mackay 5ad3611142 AP_NavEKF3: improve ext nav glitch handling 
replaces extNavTimeout with posTimeout
replaces lastExtNavPassTime_ms with lastPosPassTime_ms
 2020-05-15 11:23:07 +09:00
Randy Mackay ef02942459 AP_NavEKF3: writeBodyFrameOdom accepts delay 2020-05-15 10:07:52 +09:00
Randy Mackay c28fd27b02 AP_NavEKF3: writeExtNavData accepts delay 2020-05-15 10:07:52 +09:00
Paul Riseborough 318811210f AP_NavEKF3: Don't perform emergency yaw reset unless commanded externally 
This limits the use of the reset to situations where it is a last ditch resort before a lane switch and failsafe.
This will limit false positives for general deployment, but still provide protection from fly-aways at the cost of some increase in reaction time.
 2020-05-14 10:40:48 +10:00
Randy Mackay 45e6896d95 AP_NavEKF3: ensure extnav angle error is at least 5deg 2020-05-14 08:02:13 +10:00
Randy Mackay 67903a29e2 AP_NavEKF3: fix getLLH when no GPS 2020-05-10 15:35:55 +10:00
Andrew Tridgell 5350ea5c58 AP_NavEKF3: avoid build warnings with g++ 9 2020-05-10 15:11:22 +10:00
Henry Wurzburg 8b3f07416c AP_NAVEKF3: change plane check_scaler value to match EKF2 value 2020-05-10 07:59:27 +10:00
Andrew Tridgell cd5aae20c1 AP_NavEKF3: fixed scary message for non-compass planes 2020-05-09 12:33:33 +10:00
Andrew Tridgell 0c1ba48212 AP_NavEKF3: fixed external yaw EK3_MAG_CAL=5 or 6 
don't use GSF
 2020-05-04 15:05:56 +10:00
Randy Mackay 183ce50138 AP_NavEKF3: check GPS used before resetting pos due to GPS receiver change 2020-04-30 15:55:59 +09:00
Randy Mackay f79d5d2d2c AP_NavEKF3: handle external nav position reset 2020-04-30 15:55:59 +09:00
Randy Mackay cbb25311bb AP_NavEKF3: setAidingMode uses lastExtNavPassTime_ms 2020-04-30 15:55:59 +09:00
Randy Mackay d763597065 AP_NavEKF3: compensate for visual odometry sensor position 2020-04-30 15:55:59 +09:00
priseborough c5e465aec9 AP_NavEKF3: add external nav system support 
includes decoupling height source from use of external nav data
 2020-04-30 15:55:59 +09:00
Andrew Tridgell 7e010ef50a AP_NavEKF3: use set_enable() to set enable flag 2020-04-29 07:36:55 +10:00
Paul Riseborough ad5ae1813d AP_NavEKF3: Don't use geomag data when user specifies declination 2020-04-28 11:42:31 +09:00
Randy Mackay 91a79543c9 AP_NavEKF3: getLLH fix when no GPS available 2020-04-24 20:29:18 +09:00
Peter Barker 3440a64b66 AP_NavEKF3: correct description on XKY0 2020-04-24 18:08:14 +10:00
Peter Barker aa3165b71c AP_NavEKF3: remove incorrect units from yaw esimtator LoggerMessage 2020-04-24 18:08:14 +10:00
Andrew Tridgell 43ef8a192b AP_NavEKF3: added missing log documentation for field C 2020-04-24 09:43:23 +10:00
Paul Riseborough 1720c8de0f AP_NavEKF3: Add documentation for GSF logging 2020-04-24 09:43:23 +10:00
Paul Riseborough 9bdb89474a AP_NavEKF3: Use unique names for EKF2 logging 2020-04-24 09:43:23 +10:00
Andrew Tridgell 080f555b16 AP_NavEKF3: remove unused isDeltaYaw param from resetQuatStateYawOnly 2020-04-24 09:43:23 +10:00
Andrew Tridgell 197d31e9cc AP_NavEKF3: fixed in-flight yaw reset 2020-04-24 09:43:23 +10:00
Randy Mackay 86d221708c AP_NavEKF3: more white space fixes 2020-04-24 09:43:23 +10:00
Randy Mackay c1ef894a30 AP_NavEKF3: getDataEKFGSF and getYawData pass by reference 2020-04-24 09:43:23 +10:00
Randy Mackay 8a8271c2c7 AP_NavEKF3: minor format fixes 2020-04-24 09:43:23 +10:00
Randy Mackay ed3d072318 AP_NavEKF3: rename GSF_RUN_MASK, GSF_USE_MASK, GSF_RST_MAX 2020-04-24 09:43:23 +10:00
Paul Riseborough 7ba39c844c AP_NavEKF3: Split GSF yaw estimator processing 
Separate prediction and correction steps are required to provide an up to
 2020-04-24 09:43:23 +10:00
Andrew Tridgell 216935c1f2 AP_NavEKF3: fixed loss of GPS fusion 
we must not do a storedGPS.recall unless we will be using the data,
otherwise we will lose GPS samples and risk stopping GPS fusion
 2020-04-24 09:43:23 +10:00
Paul Riseborough 9f5e037015 AP_NavEKF3: Restore bug fix lost during rebase 2020-04-24 09:43:23 +10:00
Paul Riseborough 53df8a0238 AP_NavEKF3: Fix timer wrapping bug 2020-04-24 09:43:23 +10:00
Paul Riseborough 12d639fc17 AP_NavEKF3: Misc changes arising from review 
AP_NavEKF3: Fix typo in comment

AP_NavEKF3: Use uint32_t data type for msec timers

AP_NavEKF3: Misc msec timer fixes

Fix wrapping bug.
Use common timestamp.

AP_NavEKF3: Format fixes - remove tabs

AP_NavEKF3: Fix typing and wrap issue on time comparison
 2020-04-24 09:43:23 +10:00
Paul Riseborough 4b3952bd15 AP_NavEKF3: Eliminate unnecessary function call 2020-04-24 09:43:23 +10:00
Paul Riseborough 6ec69e6ed1 AP_NavEKF3: Update EK3_MAG_CAL parameter advice 2020-04-24 09:43:23 +10:00
Paul Riseborough 863f989130 AP_NavEKF3: Fix integration of GPS yaw options 
AP_NavEKF3: fix failure to arm with EK3_MAG_CAL = 7

AP_NavEKF3: Fix failure to arm when not using magnetometer

AP_NavEKF3: Reduce yaw drift when EK3_MAG_CAL = 7
 2020-04-24 09:43:22 +10:00
Paul Riseborough 410b5825fb AP_NavEKF3: Enable use of EKF-GSF yaw estimate 
AP_NavEKF3: Add emergency yaw reset using a Gussian Sum Filter estimate

AP_NavEKF3: Reduce default minimum GPS velocity noise for Copters

Enables fail-safe to be set with more sensitivity and improves tracking accuracy.
Origin values were set using typical GPS performance for receivers on sale 6 years ago. Receiver performance has improved since then.

AP_NavEKF3: Prevent constant mag anomaly yaw resets

Prevents constant magnetic anomaly induced resets that can be triggered when flying with vehicle generated magnetic interference.
Allows for two resets per takeoff. Allowance for two resets is required, becasue a large ground based magnetic yaw anomaly can cause a sufficiently large yaw innovation that two resets in close succession are required.

AP_NavEKF3: Add option to fly without magnetometer

AP_NavEKF3: Rework emergency yaw reset logic

Use a separate external accessor function to request the yaw reset.
Allow reset requests to remain active for a defined period of time.
Tidy up reset function to split out accuracy check.

AP_NavEKF3: Fix vulnerability to lane switch race condition

Prevents the situation where a lane switch results in a lane being selected that does not have the correct yaw. This can occur if the primary lane becomes unhealthy before the external failsafe monitor has time to react.

AP_NavEKF3: Fix EKF_MAG_CAL = 6 behaviours

Fix bug causing the yaw alignment to be performed at startup before the GSF had a valid estimate.
Fix bug causing emergency yaw message to be output for a normal reset.
Fix vulnerability to reported negative yaw variance.
Remove duplicate timer checks.

AP_NavEKF3: Update EK3_MAG_CAL documentation

AP_NavEKF3: Relax yaw gyro bias convergence check when not using mag

AP_NavEKF3: Reduce yaw drift in hover with no yaw sensor

Uses the GSF yaw estimate if available which is better than the EKF's own yaw when no yaw sensor is available.
 2020-04-24 09:43:22 +10:00
Randy Mackay 7470bc9994 AP_NavEKF3: CorrectGPSForAntennaOffset made const 
also reduce scope of call to slightly reduce CPU load
 2020-04-21 10:21:23 +10:00
Peter Barker 87108b86c8 AP_NavEKF3: add documentation for XKFM message 2020-04-21 09:48:43 +10:00
Randy Mackay 22c9081c83 AP_NavEKF3: minor comment fix 2020-04-15 19:35:30 +09:00
Peter Barker d19f8db06f AP_NavEKF3: rename APMrover2 to Rover 2020-04-14 09:50:34 +09:00
Andrew Tridgell 1f8cd830ea AP_NavEKF3: fixed use of tabs 2020-04-11 21:14:31 +10:00
Paul Riseborough f68f355852 AP_NavEKF3: Fix timestamp wrapping 2020-04-11 21:14:31 +10:00
Paul Riseborough 33ab1a7b15 AP_NavEKF3: Ensure yaw fusion commences when starting from rest 2020-04-11 21:14:31 +10:00
Paul Riseborough a3725e2581 AP_NavEKF3: Fix bug in calculation of rotation order 2020-04-11 21:14:31 +10:00