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418 Commits

Author SHA1 Message Date
Andrew Tridgell
fcccdcc936 AP_NavEKF3: fixed bug in external yaw for fixed wing 
when we are on the ground we should not chang to AID_NONE if we have
an external yaw source

this fixes an EKF3 error loop on the ground found by Michael
 2020-10-24 13:50:33 +11:00
Randy Mackay
c3fd82b6d7 AP_NavEKF3: minor spelling fix 2020-10-24 12:35:58 +11:00
Randy Mackay
2f1ae29a9c AP_NavEKF3: extnav data gets corrected boolean 
CorrectExtNavForSensorOffset and CorrectExtNavVelForSensorOffset use
corrected boolean to avoid correcting twice
 2020-10-24 12:35:58 +11:00
Randy Mackay
a16de76f57 AP_NavEKF3: correct extnav position as it is recalled from the buffer 
This makes extnav position correction consistent with the velocity correction
 2020-10-24 12:35:58 +11:00
Randy Mackay
71487e9c10 AP_NavEKF3: gps_elements gets corrected flag 
CorrectGPSForAntennaOffset uses this flag to ensure position and velocity are only corrected once
 2020-10-24 08:49:33 +09:00
Randy Mackay
3d4e1cd5c5 AP_NavEKF3: CorrectGPSForAntennaOffset always corrects vel 2020-10-24 08:49:33 +09:00
Randy Mackay
e25579cc00 AP_NavEKF3: correct GPS for position as it is recalled from buffer 2020-10-24 08:49:33 +09:00
Peter Barker
0496ecc4f6 AP_NavEKF2: remove unused state variables 2020-10-22 08:47:08 +11:00
Peter Barker
a1e7c91f8e AP_NaveEKF3: reduce code duplication in setup_core 
Less code.

Saves 40 bytes on PixRacer
 2020-10-22 08:47:08 +11:00
Randy Mackay
e4056086e0 AP_NavEKF3: minor format and spelling fixes 2020-10-21 13:54:22 +09:00
Randy Mackay
231a958e51 AP_NavEKF3: minor comment fix 2020-10-21 11:40:35 +09:00
Randy Mackay
e4ccd21dd7 AP_NavEKF3: consolidate extNav height source timeouts 2020-10-20 17:11:26 +09:00
Randy Mackay
6989a28bfc AP_NavEKF3: allow alt from other sources when using ExtNav 
also allows using ExtNav alt when not using it for XY position
removes redundant and incorrect setting of activeHgtSource from ExtNav
which was always being overwritten by the correct value later in selectHeightForFusion
 2020-10-20 17:11:26 +09:00
Randy Mackay
0cebde0632 AP_NavEKF3: minor restructure of how fusePosData and fuseVelData are set 
this non-functional change slightly reduces the number of places we set these variables
 2020-10-20 17:11:26 +09:00
Peter Barker
ef505df78a AP_NavEKF3: remove unused quat2Tbn method 2020-10-20 11:40:54 +11:00
Peter Barker
0eafe4b662 AP_NavEKF3: remove dangling method declarations 2020-10-20 11:40:54 +11:00
Peter Barker
83d784c22d AP_NavEKF3: fix includes 2020-10-20 11:40:54 +11:00
Peter Barker
3dc67f09fd AP_NavEKF3: remove unused innovationIncrement and lastInnovation 2020-10-20 11:24:34 +11:00
Randy Mackay
eeb1a1846c AP_NavEKF3: replace prearm_healthy with pre_arm_check 2020-10-07 11:53:07 +11:00
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
Dr.-Ing. Amilcar do Carmo Lucas
a3d140b949 AP_NavEKF3: reduce duplicated code. 2020-06-24 21:16:50 +09:00
Paul Riseborough
344d621a08 AP_NavEKF3: Add missing fallback to baro for range beacon use case 2020-06-24 21:16:50 +09:00
Paul Riseborough
906731222d AP_NavEKF3: Fix range aid switching logic 
Clarifies use of EK3_RANGE_USE_HGT and EK3_ALT_SOURCE parameters to control range finder use.
Setting EK3_RNG_USE_HGT to a positive number to enable automatic switching between the primary height source (baro or GPS) and range finder should be disabled if any primary height source other than Baro or GPS is selected via the EK3_ALT_SOURCE parameter.
 2020-06-24 21:16:50 +09:00
Pierre Kancir
431468452c AP_NavEKF3: add --debug-ekf to debug the EKF 2020-06-20 19:59:05 +10:00
Randy Mackay
ca0ae57b56 AP_NavEKF3: protect against position-delta sensor data being NaN 2020-06-19 13:46:52 +09:00
Randy Mackay
331f2f5fe7 AP_NavEKF3: writeExtNavData stores pos to buffer first 
This is a non-functional change
 2020-06-19 13:46:52 +09:00
Randy Mackay
578800dfbb AP_NavEKF3: protect against ExtNav being NaN 2020-06-19 13:46:52 +09:00
chobits
9b448b83c0 AP_NavEKF3: use err info from ext nav interface 2020-06-09 13:31:21 +09:00
Randy Mackay
345029ec67 AP_NavEKF3: print extNav buff size 2020-06-09 09:42:14 +10:00
Randy Mackay
0f212ca727 AP_NavEKF3: accept extnav at up to 50hz 2020-06-09 09:42:14 +10:00
Peter Barker
86687d240d AP_NavEKF3: avoid compiler warnings from -Wclass-memaccess 
../../libraries/AP_NavEKF2/AP_NavEKF2_core.cpp: In member function ‘void NavEKF2_core::InitialiseVariables()’:
../../libraries/AP_NavEKF2/AP_NavEKF2_core.cpp:343:50: warning: ‘void* memset(void*, int, size_t)’ clearing an object of non-trivial type ‘struct NavEKF2_core::ext_nav_vel_elements’; use assignment or value-initialization instead [-Wclass-memaccess]
  343 |     memset(&extNavVelNew, 0, sizeof(extNavVelNew));
      |                                                  ^
In file included from ../../libraries/AP_NavEKF2/AP_NavEKF2_core.cpp:4:
../../libraries/AP_NavEKF2/AP_NavEKF2_core.h:518:12: note: ‘struct NavEKF2_core::ext_nav_vel_elements’ declared here
  518 |     struct ext_nav_vel_elements {
      |            ^~~~~~~~~~~~~~~~~~~~
../../libraries/AP_NavEKF2/AP_NavEKF2_core.cpp:344:58: warning: ‘void* memset(void*, int, size_t)’ clearing an object of non-trivial type ‘struct NavEKF2_core::ext_nav_vel_elements’; use assignment or value-initialization instead [-Wclass-memaccess]
  344 |     memset(&extNavVelDelayed, 0, sizeof(extNavVelDelayed));
      |                                                          ^
In file included from ../../libraries/AP_NavEKF2/AP_NavEKF2_core.cpp:4:
../../libraries/AP_NavEKF2/AP_NavEKF2_core.h:518:12: note: ‘struct NavEKF2_core::ext_nav_vel_elements’ declared here
  518 |     struct ext_nav_vel_elements {
      |            ^~~~~~~~~~~~~~~~~~~~
 2020-06-05 08:42:45 +10:00
Randy Mackay
93d8458d2a AP_NavEKF3: FuseVelPosNED uses ext nav vel err in obs data check 2020-06-02 08:33:42 +09:00
Randy Mackay
d37eec5fd8 AP_NavEKF3: ext nav vel corrected for sensor position when recalled from buffer 2020-06-02 08:33:42 +09:00
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